The Practical Mechanic's Journal

The Practical Mechanic's Journal

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At a temperature equivalent to that of boiling water, the bitumen softens so much that the stone crumbles to wder; if new this ... The first weighs about 5 cwt., the second 1 ton, and the third roller about 2 tons 5 cwt. .... of his spinning-mules, was the application of standard templates to the forms and dimensions of every part.

Title:The Practical Mechanic's Journal
Publisher: - 1865


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