Fred T. Hodgson · Frederick J. Drake and Co. · leaf 399
ng joints for the car-riage and outer strings. The strings are then fixedto act as guides for fixing the centring, risers and nos-ing moulds, Where practicable, the outer string shouldbe so arranged in the fixing that it can be taken offafter the concrete is firm without disturbing the cen-tring.… … 396 CEMENTS AND CONCRETES ous parts, with their names. Bullnoses or curtails andcircular parts of nosings are formed in plaster moulds,which are run with several reverse running moulds. Staircases between walls are more simple than openstaircases; therefore they are more easy to frame up.The string…
