* I use a 4.5-kilowatt portable welder with a Kohler motor for backup power at the house. It''s not quiet, and it uses too much fuel, but it works well.* I use a Generac 4-kilowatt gas generator to run a freezer, refrigerator, lights and to energize a fence during power outages. It''s just big enough to power a 2-horsepower air compressor.* I bought a 60-kilowatt diesel-powered automatic generator in 1994 when we put up new hog barns. Previously I had a 40-kilowatt PTO generator. Trouble was, it took 15 minutes to get a tractor going and everything hooked up. And we didn''t have an alarm system, so if nobody was home we were in trouble. The automatic setup, including a 400-amp transfer switch and other wiring, cost $20,000.

For applications in which brick is laid in two independent layers (backup and working lining), such as in ladles, the brick linings must be impervious to penetration for longevity of use. This means that there must be a minimum of open joints, and to accomplish this all joints must be staggered so that vertical joints do not fall one above another. When a working lining is laid over a back-up or safety lining, all horizontal and vertical joints of one lining should be staggered so that no common seam (joint) exists between the two layers. It is recommended that the mortar be applied between the working and back-up lining. This should be a thin wash coat over the face of the back-up lining (about the thickness of paint). This will allow the working lining to be mortared on three sides. It is also recommended that the mortar should be applied over the entire face of the working lining. This should also be a thin wash coat over the face of the working lining. This will help fill any gaps or cracks on the working lining.

Though light in weight, Airbor magnetic drill has a powerful 1.6-hp air motor and 1,600-lb magnetic holding strength. With its extra rack, stroke length is extended to 10 1/4 in. Annular cutter capacity is up to 2 1/16 in. diam. Geared chuck adapter converts the unit to a standard drill press. The Slugger Air Force pneumatic drill, at 24 lbs, 6 1/4" high, is useful for confined area drilling. The drill''s features include a permanent magnet that turns on or off by air power, a cutter capacity of up to 1 1/16" diameter x 3/4" depth and the ability to use ShortSlugger cutters and frame cutters. These cutters'' geometry allows the operator to drill multi-layered truck frames in a single pass.

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