. The railroad and engineering journal . he Paris Exposition, the Creusot Worksshowed a model in wood of an 80-ton hammer, which was posing a direct-acting hammer, which may be placed inthe following order : 1. The foundations. 2. The bed-plates and sockets. 3. The legs or uprights ; the frame. 4. The upper bed-plate or table. 5. The apparatus for distribution of steam. 6. The cylinders and arrangements for controlling thehammer action. 7. The pistons and piston-rods. 8. The hammer. 9. The holding dogs or safety-catches. CHAIIKK FOUNDATIONS. For small hammers in which the ratio between
. The railroad and engineering journal . he Paris Exposition, the Creusot Worksshowed a model in wood of an 80-ton hammer, which was posing a direct-acting hammer, which may be placed inthe following order : 1. The foundations. 2. The bed-plates and sockets. 3. The legs or uprights ; the frame. 4. The upper bed-plate or table. 5. The apparatus for distribution of steam. 6. The cylinders and arrangements for controlling thehammer action. 7. The pistons and piston-rods. 8. The hammer. 9. The holding dogs or safety-catches. CHAIIKK FOUNDATIONS. For small hammers in which the ratio between theweight of the working parts and that of the bed-plate isI : 10, and especially when the base has a wide surface,there is often used the method shown in fig. i. In the first place a bed of beton varying from meter in thickness is put down ; upon this massthere is constructed a box or trench of masonry, the in-terior dimensions of which are the same as those of thebase of the bed-plate, and whose height varies from
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Keywords: ., bookcentury1800, bookdecade1880, bookidrailroadengi, bookyear1887
