Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 396
own in Figures Nos. i,2, 3 and 4. All of these designs incorporate one most excellent feature, thatwill to a great extent reduce breakages: The gauge glass is inserted in thesplit tube and the top and bottom packing glands set up tightly, before the tubeis inserted into the top and bottom… … Fig. 7.— Revolvable Guard.packing rings are knurled so that they may be screwed up by hand. In makingconnections to the top and bottom fittings on the water cohimn a wrench canbe used with impunity for no strain is put onto the glass by screwing up thepacking nuts. The only essential difference in…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-137-113.webp)
