Fig. 83. A Regular Channel-iron Kiln Truck.

Fig. 84. A Regular Single-sill or Dolly Kiln Truck.

Different Types of Kiln Doors

In [Figure 85] will be seen the Asbestos-lined Door. The construction of this kiln door is such that it has no tendency to warp or twist. The framework is solid and the body is made of thin slats placed so that the slat on either side covers the open space of the other with asbestos roofing fabric in between. This makes a comparatively light and inexpensive door, and one that absolutely holds the heat. These doors may be built either swinging, hoisting, or sliding.

Fig. 85. An Asbestos-lined Kiln Door of the Hinge Type.