Moulds for Concrete Walls

9083. Richardson, J. L. April 19, 1905, [date applied for under Patents Act, 1901]. Apparatus for moulding in situ.-Hollow concrete walls are moulded in apparatus consisting of plates 3, 4, Fig. 4, adjustable on cross-bars 13 by means of clamps 8, 9, Fig. 5, and collars 14, and supported by tie-rods 17 resting on a lower course. The inner plates 4 are held up to the work by means of a tapered plate 23, provided with an eye 24 to facilitate removal, and also slotted on the lower edges to fit over ties 25, Fig. 6. A pattern plate 26, Fig. 4, may be attached to the outer moulding-plate 3. A plate 30, Fig. 7, with T-flanges engaging grooves in the moulding-plates, may be used instead of the tie-rods 17. Any desired number of sections may be assembled on the cross-bars 13, and solid walls may be moulded by omitting the inner plates 4.