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    • 3. 发明授权
    • Tentage structure
    • 帐篷结构
    • US3874396A
    • 1975-04-01
    • US35018073
    • 1973-04-11
    • KIRKHAM ARTHUR J
    • KIRKHAM ARTHUR J
    • E04H15/18E04H15/32E04H15/42E04H15/54A45F1/00E04B1/347
    • E04H15/54E04H15/18E04H15/32E04H15/42
    • A tentage structure wherein an open tent pavilion is convertible by the addition of a base unit to form a fully enclosed tent. The tent pavilion has spaced, opposed end walls interconnecting spaced, central and side ridges of a top and each extending downwardly therefrom to an anchor point; and spaced, opposed side walls of generally triangular configuration having their bases connected to the top side ridges and respectively extending downwardly to an anchor point. The base unit has a floor and triangular walls with doors and windows formed therethrough. Fanned upright poles and ridge poles provide framing for the pavilion, and means are provided to secure each of the walls of the base unit between an end wall and a side wall of the pavilion.
    • 一种露天结构,其中开放的帐篷亭可以通过添加基座单元来转换以形成完全封闭的帐篷。 帐篷亭具有间隔的相对的端壁,其互连顶部的间隔开的中央和侧脊,并且每个从其向下延伸到锚定点; 并且具有大致三角形构造的间隔开的相对的侧壁,其底部连接到顶部侧脊并且分别向下延伸到锚定点。 基座单元有一个地板和三角形的墙壁,通过它们形成门窗。 扇形直立杆和脊柱为亭提供框架,并提供装置以将基座单元的每个壁固定在展馆的端壁和侧壁之间。
    • 4. 发明授权
    • Clamping telescopic tubes
    • 夹紧TELESCOPIC管
    • US3674294A
    • 1972-07-04
    • US3674294D
    • 1970-03-16
    • KIRKHAM ARTHUR J
    • KIRKHAM ARTHUR J
    • F16B7/14
    • F16B7/14Y10T403/32426
    • Clamping method and apparatus for an outer tube and an inner tube telescopically disposed within the outer tube, the apparatus being normally concealed from view and having a threaded coupling member mounted in one end of the inner tube, an anti-rotate loop carried by the coupling member and an expandable lock which opens against the inside surface of the outer tube and closes in response to axial displacement of the threaded coupling member. The anti-rotate loop firmly contacts the interior surface of the outer tube and is displaceable over the surface along the axis of the outer tube. Relative rotation of the inner and outer tubes causes the anti-rotate loop to bind against the inside surface of the outer tube to rotate the threaded coupling member relative to the inner tube thereby spreading the lock tightly against the inside surface of outer tube until further rotation of tubes as well as relative axial displacement are prevented.