Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 91
rmly in position duringthe introduction of the mandrel, and so that at the end of the operation it willhave been forced out snugly against the walls of the matrix A, without beingsubjected to any material modification in its length. One thing that is essentialto the realization of these ends is to… … Fig. 4. — Rolling out thk Perfor.\tf.d Bl.\nk. implies that the diameter of B, as measured along the side of the piece, anddenoted by L in Figs, i and 2, shall always be 0.707 of the internal diameter,D, of the matrix. This does not necessitate the use of odd sizes of stock for theblock B, because…
Locomotives · Steam-boiler explosions
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![An illustration from Catalogue and price list of the Supply Department [serial] (1911)](https://img.insideoutlibrary.com/img/200/ia-cataloguepriceli00asso-14-10.webp)
