Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 53
ystronger than that shown in Fig. 1, does not give an increase of strength in directproportion to the increased amount of iron left in the shell. This arises from the factthat both sides of it are subjected to an equal steam pressure, so that the material of theshell acts mainly as a bent stay… … Fig. 3. A first-rate job may be made of this construction by simply making the opening thesize and shape of the ordinary manhole, and riveting the common internal manhole frameto the shell as shown in Fig. 4. This, if rightly proportioned, has sufficient rigidity tojirevent any undue depression of…
Locomotives · Steam-boiler explosions
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