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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1836 edition. Excerpt: ...difficulty Mr. Griffiths had to contend with, was the liability to which the boiler was exposed, of having all the water blown out of the tubes by the force of the steam generated in the lower part, and to the want of a due circulation or ability of the water to return; and he has given the annexed drawing, as exhibiting the construction of the boiler used by Mr. Griffiths, which we insert, as it differs from the specification, and as it is of importance to be acquainted with its defective action. H is the fire-place, J J J the front tubes of each horizontal series, the extremities of which open into vertical tubes K K, leading into transverse horizontal tubes LLL above, where the steam is designed to be collected for the service of the engines. An invention of great singularity, but designed to effect a similar object to Mr. Barry's, inserted a few pages back, was patented in 1822, by the late highly respected and intelligent Mr. David Gordon. Our only information on this matter is derived from the interesting Treatise on Elemental Locomotion, by his son, Mr. Alexander Gordon; who, it is to be regretted, has omitted to bestow upon his sketch those details which are essential to give it a practicable form: we are therefore obliged to give the proposition in its crude state. The machine consists of a large hollow cylinder, about nine feet in diameter, and five feet long; having its internal circumference provided with a continuous series of cogged teeth, into which are made to work the cogged running wheels of a locomotive steam engine, of the kind already described, as will be recognised by the figures. The steam power being communicated to the wheels of the carriage, causes them to revolve, and to climb up the internal rack of the large...
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