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    • 5. 发明专利
    • Improvements in means for supporting, drawing and withdrawing curtains and the like
    • GB539991A
    • 1941-10-01
    • GB879440
    • 1940-05-16
    • FREDERICK DONALD ARMSTRONG
    • A47H5/06
    • 539,991. Drawing and suspending curtains and the like. ARMSTRONG, F. D. May 16, 1940, No. 8794. Convention date, June 7, 1939. [Class 52 (v) ] Apparatus for supporting, drawing and withdrawing stage or other curtains, or blinds comprises a slotted tube 10, Fig. 2, within or upon which curtain-supporting rollers 22 run, and a spindle 12 with right- and left-handed screw threads 13, 13a on which nuts 15 with depending lugs 16 supporting adjacent ends of the curtains 19 are traversed when the spindle is rotated. The rollers 22 are pushed along the tube by the lugs 16 as the curtains are withdrawn. Electric switches such as the switch 36 may be provided to stop the motor at the ends of the opening or closing movements of the curtains. To give a draping effect to the curtains as they are opened ends 37 attached to the lugs 16 are led over guide pulleys 38 and attached to the meeting edges of the curtains. The supporting tube 10 may be curved, in which case the screwed spindle 12 is replaced by a coiled spring in which the nuts run. When the invention is adapted for the movement of blinds, for example verandah blinds, the blinds are attached to the bottom (or both the top and bottom) to rollers running along a slotted tube so as to facilitate the drawing of the blinds. The Specification as open to inspection under Sect. 91 describes also a modification wherein the lugs 16 carry mechanism for causing a curl to be imparted to the vertical edges of the curtains during their opening movements. In a further modification, instead of employing rollers 22 slides or telescopic tubes may be used. This subjectmatter does not appear in the Specification as accepted.
    • 6. 发明专利
    • Improvements in spring shackles for motor road vehicles
    • GB243170A
    • 1925-11-26
    • GB2879924
    • 1924-12-01
    • FREDRICK DONALD ARMSTRONG
    • B60G11/30B60G11/36
    • 243,170. Armstrong, F. D. Dec. 1, 1924. Resilient shackles.-A shackle for a vehicle leaf spring, shown in Fig. 1 as a compression shackle, comprises a pair of rectangular side bars 10 spaced apart at their feet by a distance-piece 16 and secured together by a bolt 15 the ends of which are connected by helical tension springs 19 to a shackle bolt 21 to which a part of the leaf spring is secured and which is provided with washered slides 22 adapted to move in slots 11 in the bars 10, the upper ends of the bars being connected to the chassis or upper part of the leaf spring by a bolt 12. The bolts 12, 21 are hollow and perforations are provided in them and in the slides 22 to permit lubricant to reach the eyes of the leaf spring and the sides of the slots 11. The bolt 15 may be replaced by a strip member connecting the lower ends of the bars which are turned outwards to receive the springs 19. To adapt the device to act as a suspension shackle the fixed bolt 12 is located centrally and the movable bolt 21 is disposed above it. In other forms, two helical springs 50, Fig. 5, are used at each side of the leaf spring, the two springs being connected to a yoke 51 on the bolt 21 and to the ends of a bar 52 pivotally or rigidly secured to the feet of the bars 10.