Cement mixer having a guard for gears

Agitating – Mortar mixer type – Movable mixing chamber


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74609, 74612, F16P 100, G05G 2500




A gear guard is provided and specifically a guard for a pinion gear which meshes with a larger gear. The guard is specifically designed for use with a cement mixer and includes a U-shaped portion extending around part of the pinion gear and an elongate portion extending therefrom along a ring gear on the mixing drum in a direction from the U-shaped portion opposite to the direction in which the ring gear rotates.

patent: 833848 (1906-10-01), Rundlett
patent: 1207829 (1916-12-01), Zech
patent: 1409261 (1922-03-01), Tomblin
patent: 1581492 (1926-04-01), Rybeck
patent: 1681141 (1928-08-01), Terhune
patent: 1697333 (1929-01-01), Turnbull
patent: 1734051 (1929-11-01), Schuler et al.
patent: 2438555 (1948-03-01), Gilson
patent: 2453583 (1948-11-01), Muller
patent: 2494119 (1950-01-01), Essick
patent: 2507077 (1950-05-01), Williams
patent: 3768785 (1973-10-01), Susemihl


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