baber/WOPTO huggingface dataset:
Patent GB-968247-A (GB)
Title: New dyestuffs and processes for their manufacture and use
IPC: C09B62/535
Filed: 1962-08-02
Abstract: The invention comprises water-soluble metal complex compounds of disazo dyestuffs which, in the form of the free acid, correspond to the formula R2-N=N-R-N=N-R1 in which the middle component R represents the residue of a coupling component of the resorcinol or naphtho-resorcinol series bound to each of the azo bridges in ortho-position to a hydroxyl group, R1 represents the residue of a diazo component of the benzene or naphthalene series that advantageously contains groups imparting solubility in water and that is bound to the azo bridge in ortho-position to a complex-forming group, R2 represents the residue of a diazo component free from complex-forming groups in ortho-position to the azo bridge, and in which there is present at least one sulphonic acid alkyl amide group bound to R1 and/or R2, the alkyl chain of which is substituted with the acid radical of an inorganic acid and may be interrupted by hetero atoms. Inorganic acid radicals specified include the phosphato and sulphato groups.  Preferred heavy metals are copper, nickel and cobalt and others specified include chromium, manganese, iron and aluminium. The complexes may be prepared by conventional procedures using a single disazo dyestuff or a mixture of two different.  The 1:2-chromium complexes may be prepared by first forming the 1:1 complex and subsequently reacting with an equivalent proportion of metal free disazo dyestuff.  The dyes used as starting material may be prepared by conventional coupling procedures.  In a modified process heavy metal complexes of dyes of appropriate formula containing at least once the sulphonic acid N-hydroxylamide group are esterified at the hydroxyl group by phosphating or sulphating agents. Many products are specified representative of which are those in which R2 is derived from o-amino phenols substituted with chlorine, b -hydroxyethyl sulphonamide, nitro and sulphonic groups, R is derived from resorcinol, naphthoresorcinol and 2,4-dihydroxybenzoic acid and R1 is derived from anilines substituted with b -sulphato-ethyl sulphonamide and a -ethyl-b -sulphato ethyl sulphonamide groups. The dyes are employed for dyeing wool, silk, leather, polyamides and cellulosic materials. Examples are furnished.  Specification 820,444 is referred to.
Patent GB-201827-A (GB)
Title: Improvements relating to "d" or stirrup-shaped handles for spades, shovels, forks and the like
IPC: B25G3/02
Filed: 1922-11-01
Abstract: 201,827. Henton, E. C., and Atkinson, W. B. Nov. 1, 1922. H o l l o w stirrups h a p e d handles; strengthened handles. - Tubular stirrupshaped handles for spades, shovels, forks and the like are formed from a straight portion or shaft 1 of drawn metal tube the end of which is bifurcated and formed into side arms 2 between the ends of which a crossbar 3 of drawn metal tube is welded. The arms 2 may be strengthened by sheet-metal pieces 4, Fig. 5, welded to the arms and to the cross-bar. The end of the shaft 1 may be slit and contracted as shown at 5 for insertion into the socket of a spade &c.
Patent GB-159947-A (GB)
Title: A new or improved means for, and method of, rectifying gauges and like articles
Filed: 1919-12-01
Abstract: 159,947. Rudge-Whitworth, Ltd., and Heathcote, H. L. Dec. 1, 1919. Linear-dimension gauges.-Worn gauges are rectified by the -application 'in an appropriate direction of predetermined force localized by elements such as hardened .steel balls. Fig. 1 shows. diagrammatically one form of applying the invention. The gauge a to be treated is placed in a frame g between a fixed part and a sliding part j between which and .the :gauge are balls d. The force, which may be impulsive or gradually increasing, is applied at f, and collars h surrounding the balls form .abutments for limiting the indentation produced. The size of the balls and of the abutments may be varied. Part of the material of the gauge away from the gauging surface may be softened to facilitate rectification.
Patent GB-808120-A (GB)
Title: Improvements in apparatus for effecting heat exchange between two fluid media
IPC: F28D7/02
Filed: 1957-09-24
Abstract: 808,120. Tubular heat exchangers. DALIN, N. A. Sept. 24, 1957 [Oct. 10, 1956], No. 29927/57. Class 64(3) Apparatus for heat exchange between two fluids comprises a helical channel forming a flow path for one fluid, and a plurality of tubes extending along the channel forming a flow path for the other fluid, the two flow paths extending in substantially parallel relationship, each said tube comprising a tube section extending in one direction through the channel connected at one end to a tube section extending in the opposite direction through the channel. In the form shown, the helical channel is formed by a rib 2 mounted on a central core 1 and within a shell 20 at least one end 21 of which is expanded to make a fluid-tight fit with an external casing 3 which is provided with inlet and outlet ports 14, 15 respectively for oil to be heated in flowing through the helical channel. A tube plate 5 is removably secured to one end of the casing 3. Four tubes 9 carrying steam or hot water are coiled helically within the channel each tube forming two passes within the channel and the two passes being joined by a return bend (see Fig. 2) or a return header at the end of the channel remote from the tube plate. The ends of the tubes are received in suitable holes in the tube plate communicating with inlet and outlet headers 10, 11 for the heating fluid. The arrangement is such that all the tubes are of approximately the same length and cross-sectional area so that each tube operates with the same pressure drop. The casing 3 may be omitted. In a modification described two helical channels arranged end to end may be provided within a cylindrical casing having inlets for oil at opposite ends and a central oil outlet, a tube plate being provided at each end of the casing
Patent GB-455108-A (GB)
Title: Improvements relating to apparatus for protecting polyphase alternating current electrical apparatus, and particularly polyphase electric motors
IPC: H01H83/14
Filed: 1935-10-31
Abstract: 455,108. Protective cut-out arrangements; electrically - tripped switches. ELECTRICAL APPARATUS CO., Ltd., and BARBOUR, R. H., South Lambeth Road, London. Oct. 31, 1935, No. 30072. [Class 38 (v)] Apparatus for protecting polyphase A.C. circuits comprises an electromagnet associated with each phase of the circuit, a pair of members, which are operatively connected to the movable parts of the electromagnets so as to move without separation when the movement of the movable parts is substantially equal but so as to become separated when the movement of those parts is unequal due to unbalance in the circuit, a switch, and means operating automatically to open the switch and break the circuit upon separation of the bars. As applied to a threephase circuit, three electromagnet coils 10 each carrying the current of a phase, are arranged in a row and provided each with an armature 11 carrying a rod 40 formed with a piston 43 working in an oil-cylinder 41. Each armature 11 rests on the underside of a tappet 12 which in turn rests on an arm 35 pivoted in a recess 36 of a cover plate 37. A spring 38 received in a housing 39 in the plate 37, maintains the arm 35 in the full-line position shown, and as the current through the coil 10 increases, the armature 11 is drawn up and raises the arm 35 as shown in dotted lines. The force exerted by the spring increases as the armature rises to a greater extent than the magnetic pull on the latter increases at the same time owing to the decreased airgap. The ends of arms 35 engage between two insulation-covered bars 13, 13a, of which the latter is urged upwards by a spring, the arrangement being such that unbalancing of the phases, due to the current in one phase falling off or increasing, causes the arms 35 to move unevenly and therefore effect a relative movement between the bars 13, 13a. This relative movement causes the actuation of mechanism for cutting off the supply of the character disclosed in Specification 382,695, without, however, requiring the ambient-temperature compensating arrangement of that Specification. Uniform collective movement of the arms 35 to an excessive degree, such as would be produced by an overload, is arranged also to trip the switch in the manner disclosed in the aforesaid Specification. Specification 345,966 also is referred to.
Patent GB-769537-A (GB)
Title: A machine for the production of continuous fasteners
IPC: B21D53/50
Filed: 1954-10-19
Abstract: 769,537. Making sliding clasp fasteners. SELF-PRIMING PUMP & ENGINEERING CO., Ltd., and DOELTER, G. Oct. 19, 1954, No. 30117/54. Drawings to Specification. Class 83 (2). A machine for making sliding clasp fasteners of the kind in which inner elements are clamped within a fold of a tape by outer elements, comprises means for advancing completed lengths of fastener through the machine as they are produced, means for advancing through the machine lengths of blank tape separating the fastener lengths and means for automatically bringing the latter means into operation when a predetermined length of fastener has been produced. The construction of the machine is identical with that described in Specification 769,535. Specifications 769,534, [Group XXIV], and 769,536 also are referred to.
Patent GB-273957-A (GB)
Title: A method of fixing piles to rock
IPC: E02D7/28
Filed: 1926-11-29
Abstract: 273,957. Stevenson, C. A. Nov. 29, 1926. Piles.-Hollow concrete piles P are fixed to rock or hard strata by driving them until they rest on the rock, then boring, jumping or otherwise sinking a hole in the rock through the hollow centre of the pile and passing a pin A into the hole. The pin may be retained by means of metal, slag or other mineral wool. In modifications the pin may be split at the lower edge and driven on to a wedge in the bottom of the hole; or the pin may be secured by a Lewis bolt, or the pin may be threaded and screwed into the rock. If the hole is sunk by jetting the pin may be provided with a hollow centre.
Patent GB-1197652-A (GB)
Title: Magnesium-Zirconium Alloys.
IPC: C22C1/02
Filed: 1968-06-25
Abstract: 1,197,652. Production of magnesium alloys. MESSIER. June 25, 1968 [July 5, 1967; March 12, 1968], No.30239/68. Heading C7D. Zirconium is introduced into molten magnesium, which may contain other elements, in the form of a Zr-Mg master alloy in the presence of a flux containing at least 60% of one or more potassium salts e.g. the chloride and/or fluoride. The flux may contain potassium salts in amount representing 7-12% of the weight of molten metal and a purifying flux 2-4% on the same basis. Manganese may also be introduced into the bath in the form of manganese chloride. The alloys produced may also include one or more of Ag, Bi, Cd, Ta, Ca, Ga, Su, Mn, Li, Cu, Th, Zn, Pb.
Patent GB-300390-A (GB)
Title: Improvements in wire heald frames
IPC: D03C9/02
Filed: 1927-11-11
Abstract: 300,390. Greenwood, J., and Lord, Ltd., J. Nov. 11, 1927. Healds.-A frame for wire healds of the kind in which the healds are held on the staves by textile cords b has one or both of the staves A, A' bevelled at on their inner edges to allow the ends of the wires B<2> to be brought nearer to the staves, whereby the healds may be of less depth than usual. The vertical side members B<1> may be rounded on their outer edges.
Patent GB-1511663-A (GB)
Title: Burner assembly in a refractory-lined furnace
IPC: F23C5/08
Filed: 1975-07-18
Abstract: 1511663 Heaters JOHN ZINK CO 18 July 1975 [27 Aug 1974] 30254/75 Heading F4T A burner assembly in a refractory-lined furnace, comprises a housing with a floor 18, a refractory-lined shroud 60 attached to the housing and positioned in the burner opening 36 at the furnace bottom, the shroud having a vertical opening 62 therethrough, at least one gas supply tube 122 extending through the housing to a nozzle tip 26 in horizontal alignment with the top of the shroud a liquid stream-fuel supply means 88, extending through the housing to a nozzle 76, an aperture 102 for the steam-fuel in the nozzle and an adjustable air register 128. Control means 154 exterior of the walls is adapted to be connected to the air register for controlling the volume of air admitted therethrough and means 106, 108, assist in the removal of the nozzle horizontally from the outside wall of the housing. A plate or tube type heat exchanger 24 extends through assembly 10. Steam and oil are supplied to gun assembly 74 through ports 80, 82, and L-shaped gas tubes 120, 122, extend through openings 116, 118 to plates 110, 112, which latter also cover openings 106, 108, in the wall 42 of the heater. A vertically disposed lighting tube 138 extends through air register 128 and an air register plate 144 is adjustable to vary the air flow aperture 46 by a rack and pinion 148, 150, actuated by a handle 154. A sighting tube 156 is provided. In operation, with gas tubes 120, 122, installed through openings 106, 108, and connected to a gas supply, a flame source is inserted into tube 138 after removing cap 140 and a combination of steam and oil is forced through nozzle 76. Air register 128 is adjusted and the air is introduced through opening 72, and the gas and oil are burnt. The arrangement of plates 110, 112, allows easy removal of oil and steam gun 74 and gas tubes 120, 122, when maintenance is required. A second set of burners 160 may be installed above burners 12, Fig. 1.
Patent GB-136168-A (GB)
Title: Improvements in or relating to Gyroscopic Clinometers.
Inventor: BONNEAU EDME ETIENNE JOSEPH
IPC: G01C19/44
Filed: 1919-12-03
Abstract: 136,168. Bonneau, E. E. J., and Le Prieur, Y. P. G. Aug. 8, 1918, [Convention date]. Gyroscopic apparatus.-A gyroscopic clinometer for use on aircraft comprises a spinning top 3 pivoted within a casing 1 and provided with blades for rotating it by an air current drawn through the casing by a Venturi-tube &c. 4. The top 3 carries an horizontal mirror 5 to which light is supplied by a lamp 17 and lens 14, the latter being mounted in an extension 13 on a surrounding casing 11. The reflected light is focused on a translucent dial 16 carried by a second extension 15 of the casing 11, the inclination of the aircraft being observed on the dial 16. The casing 1 is spring-mounted on supports 6 carried by a base-plate 8 which is secured by a bolt 9 and adjusting-screws 10 to the fuselage &c. of the aircraft. Specification 140,142 is referred to.
Patent GB-741913-A (GB)
Title: Improvements in or relating to additive mixing circuits
IPC: H04B15/06
Filed: 1953-11-03
Abstract: 741,913. Frequency changing circuits. TELE FUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Nov. 3, 1953 [Nov. 3, 1952], No. 30314/53. Class 40 (6). A frequency changer comprises a triode valve arranged to oscillate and to additively mix the oscillations produced with an incoming signal, the anode of the triode being connected to the cathode of a grounded grid stage having an output circuit from which oscillations are derived having a frequency different from that of the oscillator and the signal. Valve 4 has a feed-back circuit 21, 22, 23, to cause it to oscillate and an input signal is applied to the zero potential point of the circuit. The anode of the valve is connected to a further triode valve 8 having an intermediate frequency output circuit connected to its anode. The oscillator tuned circuit may alternatively be connected between grid and cathode and coupled by a coil to the anode (Fig. 1, not shown) and the two valves may be connected in parallel with respect to the D.C. supply instead of in series (Fig.s 2 and 4, not shown).
Patent GB-338301-A (GB)
Title: Improvements in film-feed mechanism for roller-film cameras
IPC: G03B19/04
Filed: 1929-10-07
Abstract: 338,301. Photogrammetric Ges. Oct. 8, 1928, [Convention date]. Roll-film cameras. - Film feed mechanism having a lever which rests on the film during winding, engages a notch therein to stop the film and the winding mechanism, and is retracted on operating the shutter, is provided with restraining means for preventing the lever reengaging the film after exposure, the restraining means being put out of action automatically on restarting the winding mechanism. The take-up drum e is actuated from a winding handle a through gearing c, d. The nose m at the end of a double-armed lever l enters a perforation k<2> in the film, and a tooth o on the lever thereupon engages a ratchet wheel p integral with the wheel c and arrests the winding. On pressing the exposure knob q, the collar r disengages the tooth o. At the same time a pawl s, which is pivoted on the lever l and is pulled by a spring t, swings over into such a position that when the shutter knob is released it engages the ratchet c and holds the lever l out of engagement with the film. On further winding the film, the pawl s is carried by the ratchet c into inoperative position. The Specification as open to inspection under Sect. 91 (3) (a) states also that (1) a clutch between the crank and take-up drum is automatically disengaged when the film is fed the predetermined length; (2) the reinstatement of the feed may be effected by coupling it with the shutter setting mechanism, or by the tautening or slackening of the film; and (3) friction rollers could be used to stop the film, or cams rotated by engaging perforations in the film. This subject-matter does not appear in the Specification as accepted.
Patent GB-707958-A (GB)
Title: Improvements relating to extending reversible top for tables and like articles of furniture
IPC: A47B1/02
Filed: 1952-12-01
Abstract: 707,958. Extending tables. SANDERSON, F. C., BAXTER, H. T., and KNOTT, H. J. Dec. 1, 1952, No. 30398/52. Class 52(3) The frame A of a table slidably carries a pair of leaves C to the outer edges of each of which are hinged larger leaves B, all the leaves being coplanar in the extended position as shown. To fold the top the smaller leaves are slid apart outwardly and the larger leaves B hinged inwardly to overlie the smaller leaves and to abut each other along the centre line of the top..
Patent GB-970241-A (GB)
Title: Improvements relating to brush holders for dynamo-electric machines
IPC: H01R39/40
Filed: 1963-07-31
Abstract: 970,241. Brush holders for dynamo-electric machines. CANADIAN GENERAL ELECTRIC CO. Ltd. July 31, 1963 [July 31, 1962], No. 30413/63. Heading H2A. A brush holder for a dynamo-electric machine comprises at least one brush-receiving channel, 10, and includes a hairpin-shaped spring holder 20 having one leg 18 adapted for insertion in a spring-receiving channel 14, formed in a side wall of the brush-receiving channel and which has secured to it a constant-tension spring 16 arranged to engage the brush, the other leg 19 of the spring holder 20 having a hooked end portion 21 for engaging a first retaining member 35 located relatively near the collector end of the brush to lock the spring holder in position and in a withdrawn position of the spring holder 20 a second retaining member 56 located at the other end of the brush holder and permitting the spring holder to be held captive in the withdrawn position. The brush holder is secured to the machine by a shank 24 having a slot 36 for receiving a bolt.
Patent GB-837533-A (GB)
Title: Improvements in hydraulically-operated ships' hatch covers
Inventor: MACGREGOR JOSEPH
IPC: B63B19/197
Filed: 1958-09-23
Abstract: 837,533. Hatch covers. MACGREGOR & CO. (NAVAL ARCHITECTS) Ltd. Dec. 29, 1958 [Sept. 23, 1958], No. 30437/58. Class 113. In a ships hatch cover comprising paired sections 1-2, 3-4 and 5-6 which are hinged together at 9 by geared plates 10, 12 pivotably connected by a link 13 and the sections 1 and 6 are hinged to the coaming at 7, an extension 16 pivotably connects the ram 22 to the link 13 and hydraulic fluid admitted to the cylinder 17, disposed within the cover sections 1, 4, 6 and pivotably connected to the cross web 19, imposes a thrust on the extension 16 causing the joint 9 to break upwards until the sections 1, 2, 3, 4, 5, 6 are vertical and stowed as indicated by chain lines in Fig. 2. Drag links 8 connect to sections 4 and 5 so that when the pair 5-6 are being stowed they pull along the pair 3-4 for stowing in succession. The hatch cover may comprise any number of panel sections.
Patent GB-1060147-A (GB)
Title: Transducer head switching arrangements
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: G11B15/14
Filed: 1964-08-04
Abstract: 1,060,147. Transducer switching arrangements. RANK BUSH MURPHY Ltd. Aug. 4, 1965 [Aug. 4, 1964], No. 30440/64. Heading G5R. [Also in Division H3] In a transducer head switching arrangement, e.g. for switching four heads 1-4 in a video playback system, a photo-sensitive arrangement 25 produces a train of pulses at the head switching frequency, every fourth pulse being a long one. The pulse train is fed to a discriminator 26 which produces a first output pulse train at the head switching frequency which is applied to phase shifter 27, and a second output pulse train at one quarter of this frequency which is fed to gate 33. The output from phase shifter 27, and line synchronizing pulses from separator 16 are applied as inputs to a gating circuit (see Division H3) which produces an output from unit 20 whenever pulses in the two trains coincide. If, due to a fault, a synchronizing pulse is missed it is inserted by astable circuit 19, so that the system continues to function. The output from unit 20 is fed to a ring counter which cyclically switches in the four heads. In order to ensure that the correct head is switched in, the other output from the discriminator 26 is fed to gate 33 together with an output from one stage of the ring counter. Gate 33 then produces an output to adjust the ring counter if its two inputs are not in step.
Patent GB-536684-A (GB)
Title: Improvements in or relating to the heating of moving parts of machines
IPC: A43D93/00
Filed: 1939-11-21
Abstract: 536,684. Heating tools electrically. BRITISH UNITED SHOE MACHINERY CO., Ltd., and ROBSON, W. S. Nov. 21, 1939, No. 30456. [Class 39 (iii)] [Also in Group II] In a stitch separating machine employed in footwear manufacture, the tool 20 is clamped against a plate 27 which forms part of a closed secondary ring 29 of a transformer, the ring being heated by current induced therein. The magnetic core 31 is of thin sheet stampings of rectangular form, one limb being surrounded by the primary winding 33, and another limb by the ring 29. Sufficient clearance is provided to enable the ring 29 to partake of the tool movements. The ring 29 is of copper containing 1 per cent. of cadmium, and is welded to lugs 43, 45 on the plate 27. The plate is of steel and its greater resistance ensures that the heat generated in the ring is concentrated in the plate. Specification 174,164, [Class 17 (i)], is referred to.
Patent GB-833465-A (GB)
Title: Oil-soluble calcium carbonate dispersions and method of preparation
IPC: C10M159/24
Filed: 1956-10-05
Abstract: An oil-soluble dispersion of calcium carbonate is prepared by treating a mixture of a calcium sulphonate, calcium hydroxide, an alcohol and water, with CO2 until approximately neutral. The dispersion may be added to mineral lubricating oil. Preferably, calcium salts of oil-soluble mahogany sulphonates are used; alternatively, calcium salts of alkyl aromatic sulphonic acids, e.g. polydodecyl benzene sulphonic acid may be employed. In examples, a solution of calcium mahogany sulphonates in mineral oil is mixed with calcium hydroxide, methanol, and a small amount of water, and the mixture treated with CO2 at 30 DEG  to 70 DEG  C. The alcohol is then removed, e.g. by distillation, leaving a clear non-viscous dispersion.  Mineral lubricating oil may be added to the mixture, or the product dissolved in mineral oil, when it acts as a detergent. Methanol may be replaced by other alcohols, e.g. ethyl, isopropyl, or decyl alcohol, glycol, or glycerine.  The calcium hydroxide component may be formed in situ by using time to react with the water present. Reference has been directed by the Comptroller to Specification 789,820.