The Mesta Machine Company also made steam blowing engines that were less expensive and of generally a lower output than the Mesta gas blowing engines. They were still very formidable devices as you can see from the image above.
I am somewhat puzzled by the designations that Mesta gave to their blowing engines. For example, in the image above, the engines are described as [44″ and 84″ x 60″] engines. The 84″ x 60″ refers to the bore and stroke of the piston, but I don’t know what the 44″ dimension refers to. Even more puzzling is the designation of the engines on page 45 described as [Three 34″ and 66″ and 84″ and 84″ x 48″] engines. Except for the bore and stroke, I have no idea what the other dimensions refer to. If I ever figure it out, I’ll let you know.
The next two pages describe the automatic valve plates that Mesta built and installed in the air heads of their blowing engines (that could really be taken the wrong way in certain circumstances). If you’ve ever wondered about the valving used in blowing engines, and I know that I have, this is one solution.
Other articles in this series: