Dual grate for burning wood and coal
OwnerMorton A. Melvininventor
Life of this patent
Estimating the term…
Abstract
A solid fuel burner having a housing with runners mounted inside its sidewalls and vertical rods passing upwardly through the runners which support two frames each having a shaker-grid opening therethrough with a shaker grid rockably supported therein, the shaker grids being capable of separate shaking so that one grid can support a coal fire and the other support a wood fire, and the frames having air slots therethrough offset from the grid openings with plugs for selectively closing them, and sideliner plates restable on the frames and leaning outwardly against the vertical rods between the grids and the sidewalls.
Claims10
In a heater for burning solid fuels, the heater having a housing with enclosing side and rear walls and a front wall having upper and lower doors;
- an improved grate structure and mounting therefore, comprising:
- (a) a pair of opposed horizontal runners fixed to said sidewalls at a level between said doors and having rods extending vertically through the runners parallel to the sidewalls, the runners having multiple pairs of grooves in their upper surfaces, each groove being aligned with a similar groove in the opposite runner;
- (b) grate frames supported horizontally between the runners, and having lugs supported in and located by said grooves, each grate frame having a shaker-grid opening therein and having opposed bearing holes located adjacent to said runners;
- (c) a shaker grid in each frame, each shaker grid having oppositely extending pintles resting in the bearing holes of a frame, and having ash supporting fingers extending horizontally at right angles to said pintles toward the frame, and each grid having a shaker yoke extending at right angles to the fingers for rocking the grid about said pintles;
- and
- (d) a pair of sideliner plates, each extending substantially the length of a runner, the plates being supported on the frames and leaning against the rods and diverging upwardly toward the sidewalls.
Dependencies are inferred from the claim text.