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    • 4. 发明专利
    • Pipe connection
    • GB1141967A
    • 1969-02-05
    • GB2012966
    • 1966-05-06
    • ROLF MULLER
    • F16L19/06F16L41/14
    • 1,141,967. Pipe connections. R. MULLER. 6 May, 1966 [7 May, 1965; 2 July, 1965], No. 20129/66. Heading F2G. A device for the attachment of a pipe to a housing comprises a tightening piece 3 having a screwed part and a shoulder 3a, a screwed connection piece 2 for engagement with the screwed part of the piece 3 and having a tapered external end face 2b and a sealing ring 4; when the device is placed in a bore of the housing the piece 2 is screwed on to the piece 3 with the ring 4 between the shoulder and face 2b so that the face 2b expands the ring to clamp the device in the bore. The pipe 9 may be connected by a cap nut 8 screwed on to the piece 2 and with the interposition of a sealing ring 6. In modifications, (a) a metallic reinforcing ring is disposed between the ring 4 and the surface 2b, and (b) the piece 2 is tightened through the intermediary of a bush screwed therein although the bush may serve only as a sealing cap. The piece 2 may be of angle form.
    • 5. 发明专利
    • Venetian blind-type shutters
    • GB1060977A
    • 1967-03-08
    • GB1473664
    • 1964-04-09
    • HEINZ MULLERERNST MULLERROLF MULLER
    • E06B7/084F16K1/16F24F13/15
    • 1,060,977. Valves. H. MœLLER, E. MœLLER, and R. MœLLER, [trading as HELIOSAPPARATEBAU KOMM.-GES. MœLLER & CO.]. April 9, 1964 [April 10, 1963], No. 14736/64. Heading F2V. The individual slats 1, shown in partial cross - section, of a Venetian blind - type shutter normally hang vertically so that the lower edge (not shown) of each slat makes contact with the upper edge 3 of an adjacent slat, and the area of each slat below the pivotal axis 2 is greater than that above the axis so that air flow from a fan or blower striking the slats in the direction of the arrow 8 swings the slats to an open position. To minimize the pressure drop caused by the slats, which may be made of a plastics material, the upper portion of each slat is bent over as shown to enclose the pivot spindle 2 and a metal bar 6 to make the upper portion heavier than the lower portion so that the centre of gravity is brought to the point 7 where it exercises a small closing moment when the slat is closed and a smaller closing moment when the slat is open or horizontal. The bent-over portion may alternatively be shaped to accommodate round-section bars, or the upper part of the slat may be made wholly of metal and attached to the lower part, of plastics material, by a tongue and groove joint.