baber/WOPTO huggingface dataset:
Patent GB-687003-A (GB)
Title: A process and a power hammer for swaging steel
IPC: B21J7/24
Filed: 1950-02-27
Abstract: 687,003. Forging. BECHE & GROHS GES. Feb. 27, 1950 [Oct. 1, 1948; Feb. 25, 1949], No. 4983/50. Class 83 (iv). In a process for forging steel by means of a gaseous pressure-operated ram, the rate of striking is selected so that the heat generated as a result of the impact of the ram on the work will substantially compensate for the normal heat losses of the work. Die wear is stated to be thereby reduced, and use of a relatively smaller hammer is possible. A steam hammer constructed to operate at the required rate, i.e. 300 blows per minute or more, comprises a cylinder 3, ram 4, and a regulating slide valve 10 actuated by a lever 40 pivoted on the machine frame and connected to a rod 41 engaging a slide shoe 49 on a bar 43 maintained in continuous oscillation by a motor 46. The lower end of the rod 41 is pivotally mounted and longitudinally slidable in a shoe 50 carried by the rod 51 of an auxiliary control piston 52, whose movement varies the point of engagement of the rod 41 with the oscillating bar 43 and therefore varies the stroke of the valve 10. The piston 52 is actuated by a rod 57 under the control of the operator, which moves a slide valve 59 through a lever 58 to allow pressure oil delivered through a pipe 53a to operate on the piston. The lever 58 is pivoted on the piston-rod 51, thus if the valve 59 is moved by operation of the rod 57 so that the piston 52 moves, the valve 59 is moved in the opposite direction to close the pressure oil channels, and the piston 52 comes to rest. To safeguard against failure of the control gear and consequent overloading of the hammer, a throttle valve in the steam supply line is held open against spring pressure by a piston actuated by pressure supplied by a pump whose drive is connected with the control gear so that with decrease of speed of rotation of the control gear, the spring overcomes the oil pressure and the throttle valve closes, Fig. 4 (not shown). The upward movement of the ram is cushioned by a spring-loaded piston above the main cylinder 4 and behind which steam is introduced.
Patent GB-711247-A (GB)
Title: Improvements in or relating to photographic processes
Inventor: KENDALL JOHN DAVID
IPC: G03C7/28
Filed: 1952-02-26
Abstract: 711,247. Coloured photographic images. ILFORD, Ltd. May 22, 1953 '[Feb. 26, 1952], No. 4999/52. Class 98(2) In a silver dye-bleach process in which a silver halide photographic emulsion containing a dye and a developed silver image is treated with a bleach bath which bleaches the dye in situ with the developed silver image, providing a positive image in residual dye, the bleach bath contains, as accelerating compound, cinnoline or a derivative thereof substituted in one or more of the 3, 4, 5, 6, 7, or 8 positions (e.g. 4-methyl-, 4-ethoxy-, 4-phenoxy-, and 6-bromo-4-methyl-cinnoline), and 'may also contain sulphuric or hydrochloric acid and thiourea or pyridine. In example 1, an aqueous solution of " Solophenyl Blue Green BL 250 per cent " and sodium dodecyl sulphate is added to a silver iodobromide emulsion, which is then coated on a film support. The exposed material is developed, fixed, and hardened in aqueous formaldehyde solution, the dye is imagewise bleached in an aqueous solution of potassium iodide, pyridine, sodium hypophosphite, sulphuric acid, and 4-methylcinnoline, and the developed silver is bleached in an aqueous solution of copper sulphate, sodium chloride, and hydrochloric acid, and removed by fixing. The hardening step may be omitted if the emulsion is hardened or is provided with a hardened gelatin supercoat. In examples 2 to 4, the dye-bleaching baths are aqueous solutions of (2) hydrochloric acid, methanol, sodium chloride, thiourea, and 4-methylcinnoline; (3) sulphuric acid, potassium bromide, and 4-methylcinnoline; and (4) hydrochloric acid, potassium bromide, and cinnoline hydrochloride. Specifications 397,159, 397,188, 490,451, 636,222 and 711,233 are referred to.
Patent GB-557580-A (GB)
Title: Improvements in couplings for flexible hose
IPC: F16L33/207
Filed: 1942-04-16
Abstract: 557,580. Hose pipe couplings. CARLING, E. C. April 16, 1942, No. 5072. [Class 99 (i)] A rubber hose is gripped between an insert 2 and an outer sleeve 1 which is contracted progressively by commencing at the end remote from the flange 7 or by commencing midway along its length. A deformable metal washer 5 which bears on a shoulder on the insert completes the joint. The washer may be cupshaped before its deformation. Alternatively, the periphery of the washer may engage a recess in the sleeve, the flange on the sleeve being dispensed with, or the washer may be replaced by a deformable flange on the insert.
Patent GB-917287-A (GB)
Title: Improvements in or relating to coil winding
IPC: H01F41/08
Filed: 1960-02-12
Abstract: 917,287. Winding toroidal cores. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 12, 1960 [Feb. 26, 1959], No. 5131/60. Class 83 (4). A method of winding wire around a toroidal core includes the steps of forming an endless loop of flexible material passing through the core, attaching one end of a wire to a point on said loop and moving said loop so that said point travels in a closed path through the core causing the wire to be looped around the core. Wire 26 to be wound on a toroidal core 24 held in a clamp 22 is secured at 27 to an endless flexible member 15 running over grooves 21 in adjustable guide members 11, 12 rotated by a motor 16 driving belts 17, 19. The wire 26 and one run 15a of the loop 15 pass through the core 24 so that the wire 26 is looped around the core sliding off the conical surfaces of the guides 11, 12. Before winding, the wire 26 is pulled off a reel 28 which is then held stationary during winding by a pawl 32. The flexible member 15 may itself be formed from the wire 26, its end being soldered at 27. A spring-urged or rubber roller 49, Fig. 10, may bear on the wire 26 as it passes over the guides 11 and 12. To wind wire between apertures 38, 39 of a multi-apertured core 40, Fig. 8, the loop 15 is deflected by guides 41, 42 so that one run 15b passes through the aperture 39, the other run 15a passing through the aperture 38.
Patent GB-181766-A (GB)
Title: Improvements relating to colliery trams
IPC: B61D15/06
Filed: 1921-02-14
Abstract: 181,766. Jones, D. D., and James, J. Feb. 14, 1921. Sides; corves.-The body C of a colliery tram is provided at its ends with integral extensions D which are arranged to project a sufficient distance beyond the draw-bars or hitching-plates G so as to protect the latter in the case of a collision between two trams and at the same time to increase the carrying capacity. The contacting portions of the trams are arranged to be vertical, but the ends may be rounded or convexed in plan view to facilitate the rounding of curves. Reference has been directed by the Comptroller to Specifications 954/76, 3854/76, 3371/78, 102/81, 24315/05, and 150,675.
Patent GB-227662-A (GB)
Title: Improvements in or relating to the filing and binding of papers and the like
IPC: B42F13/12
Filed: 1924-02-29
Abstract: 227,662. Dunlop Rubber Co., Ltd., Sawyer, W., and Hall, E. C. Feb. 29, 1924. Post files; attaching files to covers and supports.-Loose leaves are filed on a U - shaped filing- device constructed of one piece of metal and mounted datachably on a slotted clip, the same device being afterwards used to bind the leaves permanently into book form. The device 1 is first mounted in slots in the clip 3, and a cover 7 and papers are filed on the posts formed by the upright parts 1<b>, which are screw-threaded and provided with nuts 6. When the posts are filled the wire rod is removed along with the cover and papers from the clip and the other cover 9, Fig. 3, placed in position; the nuts 6 are then screwed home, the surplus ends of the posts removed, and a flap 8 attached to the cover 7 is secured to the cover 9 to form a back.
Patent GB-418413-A (GB)
Title: Improvements in or relating to telegraph systems
IPC: H04L5/24
Filed: 1934-02-16
Abstract: 418,413. Telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.- (Assignees of Callahan, J. L. ; 2011, Newkirk Avenue, Brooklyn, New York, and Mathes, R. E. ; 755, Belvidere Avenue, Westfield, New Jersey, both in U.S.A.) Feb. 16, 1934, No. 5234. Convention date, Feb. 25, 1933. [Class 40 (iii).] Signals received from a start-stop transmitter are relayed into a multiplex distributer through storing-condensers and a pair of independentlystarted start-stop distributers. Successive impulses, as distinct from successive groups of impulses, are assigned to different channels. The multiplex sending-on distributer (not shown) is fed via line 37, by distributer cams 41 driven from the same shaft 26 through friction-clutch or like mechanism, and geared so that the impulses occupy one 7-baud channel in the multiplex transmission. The shaft 28, on the other hand, is geared so that the receiving- distributer cam-set 40 runs 7 per cent faster than the simplex start-stop signals fed to it by relay 20. Of these, the groups of five character impulses are stored in condensers C until taken off by distributer 41. The stop signal leaves magnet 34 released. The start signal from relay 20 energizes magnet 34 and thus releases shaft 28 for one revolution. during which contact 1 is moved to the right ; camwheel 18 later completes at 19 the circuit of magnet 35 which releases cam-shaft 31 at the right moment. In a modification (Fig. 2, not shown) the cam-sets 40, 41 are replaced by fixed distributer faces co-operating with startstop wipers.
Patent GB-1364316-A (GB)
Title: Drive units for conveyor systems
IPC: B65G23/16
Filed: 1972-02-24
Abstract: 1364316 Driving overhead endless conveyers HYTRAC CONVEYORS Ltd 24 Feb 1972 [24 Feb 1971] 5369/71 Heading B8A In a conveyer system including a linear conveyer element and a drive unit comprising at least one driving element which travels round guide wheels and carries drive dogs for engagement with the conveyer element, each drive dog is carried by a carrier pivotally mounted on the driving element on two longitudinally spaced axes, the drive dog being positioned intermediate said two axes. In the Figure, dogs 21 drive main chain 1, the dogs being carried by carrier members 22 which are pivotally mounted on driving chain 8 on pivot pins of the chain, the pivot axes of each carrier being spaced longitudinally of the chains by a distance equal to twice the pitch of the chain links, so that as the carrier passes round the guide wheels 9 the line joining the pivot axes of the carrier intersects the circle defined by the guide wheel, the chord formed by this intersection increasing to a maximum and then decreasing again so that the driving dogs are removed from the path of the main chain at the end of their driving run with the assistance of a movement perpendicular to the main chain and similarly engagement of the driving dogs with the main chain at the beginning of the driving run is assisted by a movement perpendicular to the main chain.
Patent GB-324263-A (GB)
Title: Improvements in or relating to buttonhole apparatus for sewing machines
IPC: D05B3/24
Filed: 1929-02-18
Abstract: 324,263. Dehn, F. B, .(W³rker Ges.). Feb. 18, 1929. Buttonholes, attachments for sewing. - A buttonhole sewing attachment for a domestic sewing machine comprises two hinged parts, one secured to the presser-bar and one to the workplate, and is operated from the needle-bar by a ratchet. The lower plate 1 is secured to the machine by a screw S and covers the usual throat plate 3 and feed dogs 2. It has a pair of lugs 4 forming, with the pin 5, the hinge for the upper plate, 6 which carries the mechanism and is secured to the presser-bar 44 by the box 42 and hinge 45, 46, 47. The plate 6 carries on its underside a plate 7 to which is connected the cloth clamps 8 by pins 9. The clamp derives its zig-zag stitch forming movements from a bell-crank 38 and cam 39 in the box 42. It derives its longitudinal and transverse button-hole feeding movement from a rack 24 operated by the pinion 25. The pinion is rotated by a one-way friction clutch 22, an arm 21 of which is given a forwards and backwards movement by lugs 20, 19 on a rod 17 operated by the lever 12 and ratchet 14 connected to the needle bar 11. The rack 24 communicates the longitudinal motion to the plate 7 by rocking a lever 28 pivoted at 30, by the pin 29; the lever 30 is connected to the plate 7 by a pin 33 engaging slots 31, 34 and the throw of the plate 7 and consequently the length of the buttonhole, is regulated by the position of the pin 33. The zig-zag movements of the plate 7 do not affect the connection between the rack and lever 28 owing to the provision of the slot 27 for the lateral movements of the pin 29. The lateral movement of the plate 7 is derived from the rack 24 by a flange 35 thereon entering and sliding in a slot 36 in the plate. The part of the plate 1 which covers the feed dogs and throat plate. may be hinged or pivoted to the main part.
Patent GB-652239-A (GB)
Title: Improvements in continuous vulcanization equipment or other analogous treatment by afluid under pressure for articles of substantial length
IPC: B29C48/05
Filed: 1947-02-25
Abstract: 652,239. Stuffing-boxes. COMPAGNIE GENERALE D'ELECTRICITE. Feb. 25, 1947, No. 5442. Convention date, Feb. 25, 1946. [Class 122(v)] In a fluid-tight end 1 for a tube 15 for the thermal treatment of an elongated article 43 the article is passed through a multiplicity of flexible metal sealing members 24 having centred orifices capable of expansion to accommodate variations in the diameter of the article and which are separated by movable bushes 28 of internal diameter materially greater than the diameter of the article 43 thereby forming expansion chambers between the sealing members. The end 1 comprises an outer tube 2 secured at one end by a flange 3 to the tube 15 and containing a single block assembly 4 secured at one end against the flange 3 and held in position at the other end by a nut 5 and comprising a plurality of rings 21 separating partitions 24 each of which is constituted by a pair of slotted discs (see Fig. 2), the rings 21 being locked in position by a nut 22. The partitions 24 are further separated by the rings 28 forced inwardly by a piston and cylinder arrangement 38 connected to an end bush 29 through linkage and supplied with fluid pressure from the tube 15. The force applied by the bush 29 may be varied by altering the linkage or by applying a counter-weight thereto. The tube 1 may be filled with water which penetrates through orifices 41, 42 to the chamber, 40 and subsequently to the chambers between chamber 40 and the atmosphere.
Patent GB-1042364-A (GB)
Title: Separation of adiponitrile from crude reaction product
IPC: C07C235/00
Filed: 1964-02-10
Abstract: Adiponitrile and products convertible thereto, such as omega-cyanovaleramide and adipamide, are separated from non-volatile by-products and catalysts contained in the liquid product of the high-temperature reaction between adipic acid and ammonia in the presence of a dehydration catalyst, by stripping the liquid product with gaseous ammonia at an elevated temperature, e.g. 250-300 DEG  C. The amount of ammonia is preferably 0.1-20 Nm3/kg. of reaction product.
Patent GB-787722-A (GB)
Title: Improvements in or relating to gun installation in aircraft
IPC: F41A21/32
Filed: 1956-02-22
Abstract: 787,722. Gun installation for aircraft. NORTH AMERICAN AVIATION, Inc. Feb. 22, 1956 [Feb. 24, 1955], No. 5472/56. Class 4. In an aircraft 1 powered by a jet propulsion plant having an air inlet 2 and wherein guns 4, 5, 6 are mounted to fire through openings 7, 8, 9 in the cowling, means are provided to deflect the discharge gases from the guns so that they do not enter the air intake 2. A blast tube 14a for each gun 14 enters the rear end of a discharge duct 13, which is formed with part annular deflecting plates 11, 12 inclined at 60 degrees to the length of the duct whereby the discharge gases are swept outwardly as shown. In a further arrangement, Fig. 5 (not shown) the blast tube extends into a chamber having a deflecting end wall and a gas discharge opening in the aircraft cowling whilst in a still further embodiment, Fig. 7 (not shown) in which a gun fires forwardly of an air intake in each side of the fuselage, the said chamber discharges into a downwardly and rearwardly extending conduit which connects with an opening in the underside of the fuselage.
Patent GB-556694-A (GB)
Title: Improvements in protective apparatus for alternating current circuits
IPC: H02H9/02
Filed: 1942-04-24
Abstract: 556,694. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. April 24, 1942, No. 5512. Convention date, April 28, 1941. [Class 38 (iv)] To provide an impedance which will limit current flow in an A.C. circuit under short circuit conditions but exhibit a minimum value under normal conditions a non-linear negative-characteristic impedance 17 is connected across a monocyclic square comprising equal inductances 13 and capacitances 14 connected in series in the circuit. Ceramic material of the kind described in Specification 292, 110, [Class 38 (iv)], a combination of saturating reactor and capicitor in series or parallel or other type of non-linear negative characteristic impedance may be employed as the element. In a modification an impedance of the kind referred to may be connected across either of an inductance and capacitance of equal value, connected in series in the A.C. circuit. Specification 7781/91 also is referred to.
Patent GB-290765-A (GB)
Title: Improvements in pianofortes
IPC: G10C3/02
Filed: 1927-03-01
Abstract: 290,765. Loveland, A. S. March 1, 1927. Drawings to Specification. Pianoforte cases.-The forward half of the top of an upright pianoforte is hinged at its front edge so as to be movable outwardly and downwardly to form the back of the music rest, the bottom portion of the rest being formed by a flap which is hinged thereto and carries legs which rest on the inside of the fall.
Patent GB-549059-A (GB)
Title: Improvements in building material
IPC: E04D3/35
Filed: 1941-05-02
Abstract: 549,059. Compound sheets. ROBERTSON CO., H. H. May 2, 1941, No. 5757. Convention date, June 26, 1940. [Class 140] A protected sheet for roofing and siding purposes comprises a central sheet 20 of metal, wall board, plywood, " Masonite," " Celotex " &c. the two latter being Registered Trade Marks, protective layers of asphalt 18, thin fibrous layers 14 of kraft or other thin paper and fire-resisting layers 12 of asbestos adhered to the layers 14 by a bituminous &c. adhesive 16 of such softening characteristics that it softens under fire conditions at a lower temperature, that the weatherresisting layers 18 thus releasing the fire-resisting layers from the fibrous layers permitting them to bulge and form insulating air pockets 20. The sheet may have weather-proofing outer coatings 26. Specifications 106,997 and 194,275, [both in Class 140], are referred to.
Patent GB-554645-A (GB)
Title: Improvements relating to the manufacture of alternating electric current rectifiers
IPC: H01L21/16
Filed: 1942-05-04
Abstract: 554,645. Asymmetrically-conducting resistances. TOMLINSON, A. V. (Union Switch & Signal Co.). May 4, 1942, No. 5983. [Class 37] The copper plates of a rectifier are oxidized in an atmosphere containing a small percentage of chlorine. For example, plates are first heated in clean air and subsequently in an atmosphere containing not more than 0.01 per cent of chlorine.
Patent GB-535526-A (GB)
Title: Improvements in artificial miniature landscapes
IPC: B44C5/06
Filed: 1940-04-05
Abstract: 535,526. Artificial miniature landscapes. RANDEL, L. April 5, 1940, No. 6186. [Class 132 (iii)] In an artificial miniature landscape, the simulated land and vegetation are made of natural uncut sponge appropriately coloured. A single sponge may be used, with protruberances representing trees and hills, paths 18 and water ways 17 being represented by the application of a cement to the sponge. A number of sponges may be used in which case they may be wired together, and the cement may be placed between the sponges for representing the water way. The invention may be used in an aquarium (Fig. 8, not shown).
Patent GB-1031152-A (GB)
Title: Improvements in or relating to switching circuits
Inventor: MATHER EDWARD LEWIS
IPC: G11C11/06
Filed: 1962-02-17
Abstract: 1,031,152. Magnetic data storage. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Feb. 1, 1963 [Feb. 17, 1962], No. 6202/62. Heading H3B. A resistor R and a capacitor C connected in series to earth smooths the pulse waveform applied from a transistor (e.g. YRP1) to a selected group of co-ordinate conductors in a magnetic matrix store. The reading and writing current circuits are separated in the matrix shown by the use of duplicated co-ordinate conductors. The driving pulses are derived from a transistor pulse defining circuit PD and are applied through transistor primary and secondary selectors, the primary selectors each being connected to grouped conductors of a different quarter of the matrix and the secondary selectors being arranged to select a single conductor in a group. The primary selectors XRP1, XRP2 and YKP1, YRP2 are arranged to apply reading currents to groups of X and Y co-ordinate conductors respectively, and the primary selectors YWP1, XWP2, YWP1, YWP2 are similarly arranged for the application of writing currents. Final conductor selection in the X and Y co-ordinates is effected by transistor secondary selectors XS1-XS8 and YS1-YS8.
Patent GB-956313-A (GB)
Title: Bituminous compositions and bitumen blending components
IPC: C08K3/06
Filed: 1962-02-19
Abstract: A method of preparing a bitumen blending component comprises heating propane-precipitated asphalt with elemental sulphur at 130 to 300 DEG C. for at least 2 hours.  Preferably, 2-20% by weight of sulphur is used and the heating is carried out for 2 to 10 hours.  The examples describe the use of flowers of sulphur and a propane-precipitated asphalt obtained from a Middle East crude.
Patent GB-676219-A (GB)
Title: Improved spraying liquid for vegetation
IPC: A01N25/02
Filed: 1949-03-08
Abstract: An aqueous solution of methyl cellulose, ethyl cellulose or ethylhydroxycellulose is used in insecticidal compositions for emulsifying one or more hydrogenated aromatic hydrocarbons or halogen derivatives thereof having a boiling-point not exceeding 210 DEG  C., e.g. tetralin, decalin, monochlorobenzene, o- and p-dichlorobenzene. Other insecticides which may be added are D.D.T., gammahexachlorocyclohexane, azobenzene, copper soaps and organic ortho esters of thiophosphoric acid, e.g. parathion.  In the examples, a 3 per cent aqueous solution of methyl cellulose is employed.  Specification 613,928 is referred to.
Patent GB-1327920-A (GB)
Title: Transistor and method of manufacturing the same
IPC: H01L29/10
Filed: 1970-08-12
Abstract: 1327920 Semi-conductor devices KOGYO GIJUTSUIN 12 Aug 1970 [20 Oct 1969] 6336/73 Divided out of 1327241 Heading H1K In an IGFET having a "base" region of the opposite conductivity type, within part of which the channel is induced, separating the source and drain regions, a single electrode is in contact with adjacent parts of the source, "base" and drain regions and is of a metal which forms a junction with the contacted part of the drain region which is lightly doped. As shown, Fig. 2, a thin N type region 1 is formed at the surface of a low resistivity Si substrate by epitaxial growth or diffusion, an insulating layer is formed on the surface and a window is opened through which impurities are diffused to form a P type "base" region 2 and an N type source region 3. The insulating layer is removed over the site of the gate electrode and a thin gate-insulation layer is applied. A window 1S, 2C, 3C is opened in the diffusion mask and a layer of Al is vacuum evaporated-on and subjected to a heat treatment. A gate electrode 6a and a source-base contact SB are defined from the Al layer by photoengraving. The Al contact SB forms an ohmic contact with the "base" region 2 and also with the source region 3 which is heavily doped, but forms a Schottky contact with the lightly doped drain region 1.