532 | GEOLOGY OF OHIO. 
Figure VII. 
out its length by a partition; the blast passing up one side and down 
the other; this stove being similar to the last in action and mounting. 
. Various other details of construction are found, the stoves receiving 
special names from their manufacturers or the inventor of the pipe, as 
- Pollock stove, Player stove, Hamilton stove, ete. 
The Weimer Machine Co. built a stove in which the pipes, instead 
P) 
of resting by gravity on a “‘ bed pipe,” which serves to supply the cur- 
rent of air to the series of pipes, are suspended from the upper part of 
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