| 摘要 |
A snow making tower including a vertical ground support post having its bottom end anchored into the ground and a tower support pole is coaxially mounted on this ground support post for free axial rotation thereon. An upwardly extending support arm is secured intermediate its ends to the upper end of the tower support pole for pivotal movement from horizontal to vertical. An elongated pipe snow making tower is provided with snow making nozzles adjacent its upper end and supply connections at the lower end for connection to remote sources of air and water under pressure for supply thereof to the nozzles for discharge into ambient atmosphere for manufacturing snow in subfreezing conditions. The elongated snow making pipe tower is pivotally secured intermediate its ends to the upper end of the support arm for pivotal movement in a vertical plane from parallel alignment with the support arm to positions below horizontal. The support arm is provided with spaced upper and lower sleeves mounted thereon which slidably receive a lower portion of the elongated tower pipe therein for adjustable parallel extension or retraction relative to the support arm. A lock is provided in the sleeves for locking the tower pipe in the desired position. A retainer line of adjustable length connects the lower end of the support arm to the tower support pole for retaining the tower at a desired angle relative to vertical. The lower sleeve is detachably secured to the lower end of the support arm for releasing the lower sleeve together with the lower end of the tower pipe for pivoting the tower pipe about its pivot connection to the upper end of the support arm.
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