Fred T. Hodgson · Frederick J. Drake and Co. · leaf 241
B, Fig. 1, then fix it on the centre board, A, with twohinges, keeping the upper surface or mould plate levelwith the top edge of the centre board, as shown on thesection of the niche, Fig. 2. This also shows the endsection of the centre-board and the mould, with themould plate and a hinge. The… … Forming Niches with Running Moulds. NO. 23. 238 CEMENTS AND CONCRETES actly at the springing of the crown, C. The face of thewall must be floated plumb, and an allowance made bymeans of dots for the thickness of the setting coat be-fore the centre-board is fixed. After the crown is fin-ished, the…
