The former edition of this
Treatise, forming one of Weale's Rudimentary series, gave a
brief outline of the Carpentry of floors and roofs, together
with a popular account of the action of forces in the several
pieces which compose a truss.
present edition, whilst it retains a considerable portion of the
former one, is also greatly enlarged, and is in the main an
abridgment of Tredgold's folio work on Carpentry.
Alterations, additions, and
corrections have been made wherever the advanced knowledge of
the strength of materials and the science of Carpentry proved
such to be necessary.
The mode of calculating the strains on the
parts of a truss by geometrical diagrams is explained, and an
example given; the tables of scantlings for the timbers of roofs
being calculated by the help of this process.
The subject of
Joinery, which was altogether omitted in the former edition, has
a considerable space allotted to it, and is made an important
feature in the present work; the various technical terms and
modes of operation adopted by the Joiner being explained as far
as the limits of the work would permit.
The book is illustrated with numerous engravings, so as to
render it, as far as possible, complete in itself; but frequent
reference is made in its pages to an Atlas of Plates, published,
as formerly, in a separate volume, in which will be found a
large number of examples of the various works which come under
the denominations of Carpentry and Joinery.
E. W. T.