on being somewhat cheaper. A short Bank). A combustible cord, preferably of silk, is run A PLUG FOR LEAKY TUBES IN BOILERS. outside shaft attached to the lower carriage, and car- around the ceiling from a peg, passing over guide rying bevel gears engaging a larger bevel on the longi- A plug of wood… … used in tightening and forcing the plugs toward each of Liaotung, at the northern extremity of the Yellow other is somewhat different from the permanent outer Sea, far over the plains and mountains, nearly to the McCASLIN'S FIRE ALARM. head shown in Fig. 2, the tightening head having con- western…
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