baber/WOPTO huggingface dataset:
Patent GB-442880-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/048
Filed: 1934-08-16
Abstract: 442,880. Electrolytic condensers. DUBILIER CONDENSER CO. (1925), Ltd., Victoria Road, North Acton, London.- (Dubilier, W.; 10, East 40th Street, New York, U.S.A.) Aug. 16, 1934, No. 23701. [Class 37] A metal sheet electrode for an electrolytic condenser is perforated in such a manner, either mechanically or chemically, as will increase the effective area, the sides or walls of the perforations being included in the area having a dielectric film formed on it. The Figure shows a sheet A with mechanical perforations A<1> such that their diameter is not greater than twice the thickness of the sheet. If the perforation is effected chemically, etching is continued until on holding the sheet up to the light minute pin-holes can just be seen. The electrode may, prior to or after the perforating operation, be subjected to a process of embossing, etching or otherwise roughening. Specification 439,530 is referred to.
Patent GB-1039908-A (GB)
Title: Improvements in and relating to explosive bodies such as ammunition projectiles
IPC: F42B12/58
Filed: 1963-06-14
Abstract: 1,039,908. Ammunition projectiles. O. DUNKEL. June 14, 1963 [June 15, 1962], No. 23768/63. Heading F3A. An ammunition projectile comprises a chamber 1, containing a bursting charge, surrounded by chambers 2, 3 containing high explosive, detonation of the bursting charge causing chambers 2, 3 to be thrown from the centre of explosion and to explode after a predetermined time. The bursting charge is detonated by a conical percussion fuze 4, which may have an off-centre apex, Fig. 4 (not shown), and due to the explosion, detonators 11 in chambers 2, 3 are acted on by percussion pins 10. Driving band segments 13 are accommodated within grooves which may be of dovetail section. Chamber 1, as shown in the lower half of Fig. 1, may be flared as at 14. Alternatively, Fig. 2 (not shown), chamber 1 may be a truncated cone with its base adjacent fuze 4 and the surrounding chambers may be transversely subdivided into chambers 2a, 2b, 3a, 3b, withpartitions 15 having percussion pin and detonator assemblies 16, 17. The explosive chambers may contain shrapnel 18.
Patent GB-877607-A (GB)
Title: Improvements relating to clothes washing machines
IPC: D06F17/02
Filed: 1960-07-07
Abstract: 877,607. Washing machines; wringers. FREIRE, A. C. July 7, 1960, No. 23798/60. Class 138 (2). In a washing-machine comprising a main compartment 1 communicating with a subsidiary compartment 4 through a perforated screen 3, water is drawn from the compartment 4 by a pump 6 and returned to the compartment 1 through a number of injectors which produce random currents of water and prevent the clothes from blocking the screen. The flow of water under pressure through the injectors causes them to oscillate laterally, each injector comprising two pipes 9, 10, Fig. 6, connected by a resilient pipe 11. The pipes 9 are connected by pipes 8, 7 to the pump 6. The bottom 2 of the compartment 1 is formed in a parabolic curve. The clothes are dried in a perforated container 12 by means of an expansible rubber bag 17. By opening a valve 18 part of the liquid in circulation is diverted to expand the bag 17.
Patent GB-606132-A (GB)
Title: Improvements in epicyclic reverse gears
IPC: F16H3/60
Filed: 1945-09-14
Abstract: 606,132. Epicyclic reverse gear. GRAVELY MOTOR PLOW & CULTIVATOR CO. Sept. 14, 1945, No. 23838. Convention date, July 19. [Class 80 (ii)] [Also in Groups XXXI and XXXIV] A single continuous brake-band 104, having a double internally-coned friction surface, is moved axially in either direction to engage selectively complementary oppositely coned external surfaces of ring-gears 81, 90, one, 81, of which produces reduced forward drive by engaging a sun 71, on an inner driving shaft 60, through planets 74 carried by an outer concentric driven shaft 80, whilst the other ring- gear 90 produces reverse by engaging planetary idlers 87 meshing smaller stepped wheels 86 of the main planets 74. The brake-band 104 is shifted axially by a yoke 118 on a rockshaft 128 and engaging a pair of diametricallyopposite sliding rods 107, 108, Fig. 4, notched to engage the brake-band 104, which latter has ears 105 projecting on each side of each rod to transmit brake-torque to it. A blade-spring 131 engages a notch in one of the rods 108 to retain the band in neutral position. A splined extension 61 of the driving shaft 60 carries a jaw-clutch member 62 for driving an aligned power take-off shaft 67. The gear is lubricated through a conduit 154 fed by an oil-pump on the driving shaft.
Patent GB-784662-A (GB)
Title: Manufacture of finely dispersed organic or inorganic pigments
Inventor: RAAB HANS
IPC: C09B67/46
Filed: 1955-08-18
Abstract: Finely-dispersed pastes of organic or inorganic pigments are made by kneading the pigment with at least 10 per cent by weight of a polyglycol ether, the proportions being such that the mixture has an initial viscosity of 2000 centipoises or over. Preferably, 50-90 per cent of the ether is employed, and the initial viscosity is over 106 centipoises.  Water or other diluting agent may be those disclosed in German Specifications 605,973, 667,744, 694,178, 679,710, 824,949 and 806,671, Austrian Specification 160,871 and Specification 690,355, [Group IV (a)]. The pastes may be used in the dyeing of polyacrylonitrile, viscose, and copper rayon, for colouring lacquers and resins, pigment printing, colouring paper pulp, and for wallpaper colours. In examples: (1) the condensation product from hydroxydiphenyl, benzyl chloride, and ethylene oxide (Example 1 of German Specification 824,949) is kneaded with the following: (a) the dyestuff 2.5 - dichloro - aniline --> 21.31 - hydroxynaphthoylamino-benzene, (b) the dyestuff 4-chlor - 2 - toluidine --> 1 - phenyl - 3 - methyl-5-pyrazolone, (c) copper phthalocyanine, (d) red iron oxide; (2) the disazo dye from diazotized o - aminodiphenyl and 3.31 - dimethyl - 4.41-diaceto - acetylamino - diphenyl is kneaded with isooctylphenyl polyglycol ether according to Example 1 of Austrian Specification 160,871.ALSO:Finely-dispersed pastes of organic or inorganic pigments are made by kneading the pigment with at least 10 per cent by weight of a polyglycol ether, the proportions being such that the mixture has an initial viscosity of 2000 centipoises or over. Preferably 50-90 per cent of the ether is employed, and the initial viscosity is over 106 centipoises.  Water or other diluting agent may be added. Polyglycol ethers employed may be those disclosed in German Specifications 605,973, 667,744, 694,178, 679,710, 824,949 and 806,671, Austrian Specification 160,871 and British Specification 690,355, [Group IV (a)].  The pastes may be used in the dyeing of polyacrylonitrile, viscose, and copper rayon, for colouring lacquers and resins, pigment printing, colouring paper pulp, and for wallpaper colours.  In examples, the condensation product from hydroxy-diphenyl, benzyl chloride, and ethylene oxide (Example 1 of German Specification 824,949) is kneaded with red iron oxide.
Patent GB-1468162-A (GB)
Title: Coin handling apparatus
IPC: G07D5/00
Filed: 1973-05-18
Abstract: 1468162 Coin mechanisms MARS Inc 9 May 1974 [18 May 1973] 23883/73 Heading G4V A coin handling apparatus includes a device for abruptly stopping the motion of a coin along its path of travel thus avoiding bounce at changes of direction of a coin, the device comprises a strike plate 30, a support 34 positioning the plate in the path of a coin, a cushion layer 32 of elastic material contiguous to and between the plate and the support to be compressed by and yield under impact of a coin with the plate, and a mounting for the support adapted to yield resiliently under the energy of an input transmitted to it by said support. The mounting for the support is a plate 18 of the mechanism 10 and a second cushion layer 36. The sizes and materials of the plate, the support and the cushion layers can be varied.
Patent GB-1520313-A (GB)
Title: Time base compensator
IPC: H04N9/896
Filed: 1975-04-14
Abstract: 1520313 Television AMPEX CORP 14 April 1975 [25 April 1974] 23906/76 Divided out of 1520311 Heading H4F The subject-matter of this Specification is identical with that described in Specification 1,520,311, but the claims are concerned with apparatus for altering the time-base of a digital information signal having a time-base component defining intervals of the digital information signal, comprising; a randomly addressable digital store having addressed storage locations for receiving and storing digital information; means for effecting the storage of successive portions of the digital information signal at different addressed storage locations of the store at times determined by a clock signal; means for effecting retrieval of the stored portions of the information signal from addressed storage locations at times determined by said clock signal; and means responsive to the time relationship between the digital information signal timebase component and a reference time-base signal to adjust for each interval of the digital information signal the time between the storage of each portion of the digital information signal at an address and the retrieval of said portion from said address.
Patent GB-1344108-A (GB)
Title: Pumping device for the distribution of gas-free liquids
IPC: F04D15/00
Filed: 1971-04-19
Abstract: 1344108 Centrifugal pumps J DELSUC 19 April 1971 [13 March 1970] 23961/71 Heading F1C Pumping apparatus comprises a gravity fed liquid container 1, Fig. 2 and a centrifugal pump 6, the entry of which is supplied with liquid through a balanced valve 32, Fig. 3 in a lower region of the container, the valve being operated by a float mechanism 33 to control the pump throughput in accordance with the liquid level. When the container is filled the float 33 is in its highest position so that the arm 30 and member 19 are in the broken line position Fig. 3 with full flow to the pump inlet and maximum pump output. Falling liquid level throttles the pump inlet to reduce the pump output. The pump outlet pipe may have a non-return valve (37), Fig. 1, (not shown).
Patent GB-884990-A (GB)
Title: Improvements in or relating to missile projectors
Inventor: KONINGSVELD DUDLEY VAN
IPC: F41A9/45
Filed: 1957-07-29
Abstract: 884,990. Motar bombs; mortars. AVIATION, MINISTER OF. June 26, 1958 [July 29, 1957], No. 24023/57. Classes 9(1) and 92. A mortar comprises a barrel 1, a firing chamber 3 mounted by trunnions 4 pivoted in blocks 5 slidable on rods 6, and a breech block 9 having a spigot 10 rotatable and slidable in a yoke 8. The breech block 9 has cam surfaces 12 co-operating with cam surfaces 13 on the yoke 8 whereby when the chamber 3 has been loaded with a bomb 19 and a propulsion cartridge 18 and a handle 14 on the block 9 is rotated to move the block forwards, the block 9 pushes on the cartridge 18 and urges the front end of the chamber 3 in sealing engagement with the rear end of the barrel 1, against the action of springs 16. After firing of the bomb the breech block 9 is retracted thus permitting the springs 16 to move the chamber 3 away from the barrel until the latter is arrested by stops 17 secured to the rods 6. The chamber 3 is then pivoted upon its trunnions 4 out of alignment with the barrel whereby the expended cartridge may be removed and a new bomb and cartridge inserted. As shown in Fig. 2, the forward part of the bomb receiving portion of the chamber 3 is of slightly smaller diameter than the rearward part, these two parts being connected by an inclined ramp 21. The bomb 19 has a groove 23 accommodating an L-section sealing ring 22 and when the bomb is loaded the engagement between the ring 22 and ramp 21 serves to correctly position the bomb within the chamber. Alternative arrangements of sealing and stop rings are described with reference to Figs. 3-7 (not shown).
Patent GB-710289-A (GB)
Title: Improvements in means for feeding continuous stationery to printing machines
Inventor: MOON WILLIAM RICHARD HARDING
IPC: B41L47/24
Filed: 1951-10-16
Abstract: 710,289. Operating clutches. ADREMA, Ltd. Oct. 16, 1952 [Oct. 16, 1951], No. 24106/51. Class 80 (2) [Also in Group XVI] A clutch 21, positioned in the drive of an addressing machine (see Group XVI), comprises a driving member 59, Fig. 5, and a driven member 60 mounted such that a bolt 61, axially slidable in the member 60, is urged by a spring into an aperture 62 in the member 59. A tapered blade 64 pivoted at 65, Fig. 4, engages a groove 63, Fig. 5, in the member 60 and a shoulder 66 on the bolt 61, such that rotation of the member 60 withdraws the bolt from the driving member 59 and thus arrests the driven member 60. The blade 64 is urged, by a spring 67, Fig. 5, away from the bolt, but can be held in engagement with the bolt by a detent 68, Figs. 4 and 5. biased by a spring 69 into operative position. A ram surface 70 engages a roller 71 at each revolution of the member 60 to return the blade to boltengaging position, such that if the detent has been released by a wire 72 operated by the printing head (not shown) of the machine the bolt is withdrawn and the member 60 arrested. However, if the detent 68 is withdrawn clear of the blade when the cam surface 70 releases the blade 64, the blade disengages the bolt 61 and the clutch is engaged for another revolution.
Patent GB-188841-A (GB)
Title: Improvements relating to external ice cream freezing machines
IPC: A23G9/18
Filed: 1921-09-13
Abstract: 188,841. Hargreaves, W., Gott, T. W., and Swanston, E. Sept. 13, 1921. Solidifying and then removing films. - Freezing-machines of the type comprising a rotary internally cooled drum over the surface of which cream &c. is spread in a film and solidified, are provided with means for controlling automatically the action of the cream feeding device and the knife or scraper for removing the frozen material. The shaft 21 of the freezing- drum 27 is coupled to a shaft 22 of driving-mechanism contained in a casing 2 at one end of the machine, the control mechanism also being contained within the casing and actuated from the shaft 22. A quadrant 4, Fig. 4, pivoted to a fixed bracket 3, is formed with internal ratchet teeth engaged successively by a single tooth 23 on the shaft 22, whereby the quadrant is lifted one step at each revolution of the drum. A pivoted stop 5 at the upper part of the quadrant first engages an extension 6<a> of a lever 6 to move an adjustable link 10 connected to an arm 12 fast on the shaft 13 carrying the scraper 14, which is thereby put in action after the first revolution of the drum. At the end of the next revolution the quadrant is raised sufficiently to release the lever 6 and disengage the scraper, and to bring the stop 5 into engagement with another lever 7 connected by an adjustable link 16 to a shaft 18 controlling feed valves, or as shown, feed rollers 10, Fig. 2, whereby cream is applied to the drum. Return of the quadrant is prevented by a backstop pawl 24 engaging outside ratchet teeth, until such pawl is disengaged by the following means. An arm 33 pivoted at 34 to an adjustable bracket 35 engages a pin 29 cn a. pivoted arm 32, and when the arm is lifted by a projection 38 on the quadrant the pin 29 is moved to tilt a lever 28 into the path of a stop 30 on a gear wheel 31 rotating with the shaft 22. The stop 30 moves the lever 28 to disengage the back stop pawl 24 from the quadrant, and then wipes past the lever. The scraper is put in action at the next lift of the quadrant and the operations described are repeated. The bracket 35 is held in its adjusted position by a spring catch 37, the adjustment determining the interval before the quadrant stop 38 engages the arm 33. The feed rollers may be mounted in a cream trough supported by arms on the rocking shaft 18.
Patent GB-387615-A (GB)
Title: Corrosion-resistant age-hardenable aluminium composite metals
IPC: B32B15/01
Filed: 1932-08-31
Abstract: 387,615. Making cased or compound forms ; riveted joints. DœRENER METALLWERKE AKT.-GES., and MEISSNER, K. L., 10, Victoriastrasse, both in Duren, Germany. Aug. 31, 1932, No. 24343. Convention date, Sept. 12, 1931. [Classes 83 (ii) and 83 (iv).] Plates and sheets.-An age-hardenable aluminium alloy containing copper is rendered corrosion resisting by covering it on one or both sides with another aluminium alloy, containing a lower percentage of copper but which is electro-negative with respect to the covered alloy, by rolling &c. An example is given in which the covering alloy contains 0.5-3 per cent of copper against 4-4.5 per cent of copper in the covered alloy. Rivets for use with such compound metal plates are formed of the same alloy composition as the covering layer.
Patent GB-337487-A (GB)
Title: An improved logarithmic calculator of the cylindrical type
IPC: G06G1/04
Filed: 1929-08-09
Abstract: 337,487. Garwood, G. T. Aug. 9, 1929. Slide-rules. -A cylindrical sliderule consists of a stock a provided on its mid-portion with a six-sectioned logarithmic scale' f for co-operation with a cage-like sleeve b carrying a similar scale. At one end of the stock are also scales g, h, i for giving respectively the squares, cubes and anti-logarithms of the values inscribed on the sleeve. At the other end of the stock are two sectional scales j, k graduated in terms of log. sines and log. tangents for similar co-operation with the sleeve. To overcome the difficulty of partial graduations the scale sections are extended at their ends as can be seen in Fig. 2. A cursor l may be mounted on the sleeve.
Patent GB-1172944-A (GB)
Title: Radiant Energy Absorption Gauge for Measuring the Weight of a Base Material and the Content of a Material Sorbed by the Base Material
Inventor: BRUNTON DONALD CHARLES
IPC: G01G9/00
Filed: 1968-05-22
Abstract: 1,172,944. Measuring weight per unit of area and constituent absorption. BRUN SENSOR SYSTEMS Inc. May 22, 1968, No. 24347/68. Heading G1A. An apparatus comprises optical means 16, Fig. 1 for deriving at least three separate beams of substantially monocromatic radiation from an infrared source 13 and directing them through an organic sheet material, such as paper 10, on to detector means the beams of wavelength # 1 , # 2 , # 3 , being subject respectively to molecular bond absorption by the absorbed constituent but independent of molecular bond absorption by molecules of the sheet material; independent of molecular bond absorption by both; and subject to molecular bond absorption by the sheet material but independent of molecular bond absorption of the absorbed constituent and producing separable electrical signals the ratios Vm proportional to signal # 1  / signal # 2 ; and Vw proportional to signal # 3  / signal # 2 , of which are derived and used to indicate absorbed constituent content and basic weight of the material. The light beam may be chopped by a chopper 30 before splitting and the beams directed to separate detectors, the separate beams may be chopped at different frequencies and directed on to a common detector, or the beams may be separated in time rather than space by for example a rotating set of filters and again applied to a common detector. Suitable wavelengths in the infrared band are exemplified, and two separate wavebands meeting the requirements of # 2  may be used so that the resulting four signals may be detected in pairs. Signals proportional to ratios Vm and Vw are used in the embodiment of Fig. 1 to give a proportional moisture reading. The amplifiers in the arrangements described are tuned to the chopping frequency of the signal they are required to handle.
Patent GB-647038-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B5/12
Filed: 1948-09-16
Abstract: 647,038. Clip fastenings. UNITED-CARR FASTENER CORPORATION. Sept. 16, 1948, No. 24359. Convention date, Sept. 16, 1947. [Class 44] A fastener member for securing a moulding strip or the like to an apertured support 1, Fig. 3, comprises a single piece of sheet metal including a plate 10 having a tongue 11 disposed in a plane spaced from that of the plate and adapted to be inserted laterally in an aperture 2 of the support so that the plate and the tongue engage the opposite faces thereof, a stop member 18, Fig. 7, cut from the tongue and extending rearwardly for engagement with the edge of the aperture in the support, the plate being provided with means such as flanges 16 at each edge for engaging the moulding strip. Tongues 17 may be pressed up from the flanges 16 to engage inturned edges of the strip 20, Fig. 2.
Patent GB-1507167-A (GB)
Title: Control system for variable pitch fan propulsor with reverse pitch
IPC: F02K3/06
Filed: 1975-06-06
Abstract: 1507167 Controlling gas turbine ducted fan engines UNITED TECHNOLOGIES CORP 6 June 1975 [7 June 1974] 24383/75 Heading F1J The subject matter is substantially the same as that described in Specification 1506275 but the claims are concerned with the reverse pitch interlocks in the fan blade angle and engine fuel flow co-ordinating control system.
Patent GB-665255-A (GB)
Title: Method of decantation and its application to a shaft for excavated materials in a dredger
IPC: E02F7/06
Filed: 1949-09-22
Abstract: 665,255. Treating waste liquids; gravity-separation apparatus. ATELIERS ET CHANTIERS DE BRETAGNE ANCIENS ETABLISSEMENTS DE LA BROSSE & FOUCHE. Sept. 22, 1949 [Aug. 9, 1949], No. 24403/49. Classes 46 and 111. [Also in Group XXX]. A mixture of solid and liquid to be separated is supplied to a body of water from the opposite side or sides of which water is decanted in elementary streams of equal flow capacity distributed uniformly over lateral surfaces arranged between an open constant level and a predetermined lower level of the body of water. The mixture is preferably led into a conduit extending laterally of one of the sides of the body of water and above its open level and then flows vertically into a channel arranged beneath the conduit whence it joins the body of water through a lateral wall of the channel. A grit or silt suspension from the discharge pipe of a dredger pump passes a conduit 1a, Fig. 2, extending across a settling tank or the dredger vessel and having a perforated bottom 3. The liquid flows downwards into a channel 4a, Fig. 1, and thence laterally along a number of diverging passages 6 into the vessel. When the level of the liquid rises above the level 7 liquid free from solid overflows along converging passages 6 into a channel 4b, symmetrical with 4a, and flows thence into an overflow discharge pipe. The entrance to a conduit 1b above the channel 4b and corresponding to the conduit 1a is closed by a valve plate 2 (shown dotted) to prevent overflow of liquid through it. An overflow discharge pipe at the end of channel 4a is closed by a similar valve plate 5. When the level 8 is reached and thereafter, liquid flow between levels 7 and 8 is slow and lateral, solids depositing throughout the width of the vessel. Turbulence below the level 7 is thus avoided. The direction of flow may be reversed by closing valve plates 2 and 5 and opening corresponding ones to bring about a more uniform distribution of solids across the vessel. In Fig. 4 an intake conduit 1 and channel 4 are arranged midway between the ends of the vessel. The flow is thus divided into two streams each of half capacity; the flow velocity from the channel 4 is thus reduced to half but since the path-length to the respective discharge channel (4c or 4d) is reduced to half for each stream the liquid reaches the overflow from channels 4c and 4d in the same time as before. The efficiency of deposition is thus increased. The velocity may be still further reduced by arranging the conduits and channels along the length dimension of the vessel instead of along the width.