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Removal of snow from a roof with a special tool called a roof rake. To be successful, the entire roof must be shoveled. Shoveling part way up a roof will cause an ice dam to form at the location where the snow was left, because the meltwater will freeze when it hits the freezing air. [2]
De-icing is defined as removal of existing snow, ice or frost from a roadway, airport runway, roof, or other surface. It includes both mechanical means, such as plowing, vacuuming or scraping, and chemical means, such as application of salt or other ice-melting chemicals.
A roof rake features a long handle and a flat, scoop-like head for removing debris or snow from rooftops, preventing gutter clogs and structural damage, especially in snowy regions. [2] Berry-picking rakes are tools for collecting berries. Fire rakes, a heavy-duty variant of the normal rake, are used for fire prevention.
The system features a ballistic computer, and a laser range-finder. Hensoldt Dynahawks Germany: Fire control sight (for MANPATS) MBDA Enforcer: ATGM (Anti-tank guided missile) — The system features: [83] telescopic sight with 5.5 × magnification; a ballistic computer; a laser range-finder; can be combined with a Hensoldt IRV-MR night vision ...
Telescopic cylinders must only be used in machinery as a device for providing force and travel. Side forces and moment loads must be minimized. Telescopic cylinders should not be used to stabilize a structural component. [4] Hydraulic telescopic cylinders are often limited to a maximum hydraulic pressure of 2000-3000 psi.
Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...
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