Builder's hardware; a manual for architects, builders and house furnishers . Fig. 292. The Locking-plate of theBramah Lock. Fig. 293. Plan of Cotterills Lock towards the centre by springs. A fixed ring or plate is fittedto a circular groove on the face of the disk, and has slots cor-responding in position to the radial slides. There are alsoslots cut on the edges of the slides, so that when the key isin place the slots on the slides coincide with the circular

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Keywords: ., bookcentury1800, bookdecade1890, bookidbuildershard, bookyear1890