. American engineer . Faessler Expander, Showing Position of Mandrel Extractor WhileTube Is Being Expanded. and the quality of the work. To eliminate this difficulty, thelatest type of expander designed by the J. Faessler Manufac-turing Company, Moberly, Mo., has a quick acting consists of a sleeve fitted closely over the mandrel and havingan extended arm to receive the blows of the hammer. After the mandrel is forced in place either the pneumatic orhand hammer strikes the end of this arm and the effect of theblow is such that the sections are loosened from the mandrel,and at the
. American engineer . Faessler Expander, Showing Position of Mandrel Extractor WhileTube Is Being Expanded. and the quality of the work. To eliminate this difficulty, thelatest type of expander designed by the J. Faessler Manufac-turing Company, Moberly, Mo., has a quick acting consists of a sleeve fitted closely over the mandrel and havingan extended arm to receive the blows of the hammer. After the mandrel is forced in place either the pneumatic orhand hammer strikes the end of this arm and the effect of theblow is such that the sections are loosened from the mandrel,and at the same time the lever action tends to withdraw themandrel. Theoretically each hammer impact on the arm forcesthe collar against the adjacent expander segment, and moves itslightly lengthwise before the balance of the segments are af-. Faessler Expander with Hammer Applied to Mandrel Extractor. fected. of the collar and expander segments formsf; fulcrum .around w^ich the entire sleeve movesarid imparts aslight lateral impulse to the mandrel which teijiis to break thecontact with the other expander segments. This device doesnot in any way interfere with the expansion, and is usually al-lowed to remain on the mandrel. It is found that it releasesthe mandrel much quicker than can be done by hand, and itdoes not jump out, but simply creeps backward with the great-est safety and convenience. Its use results in a decided increasein the number of tubes that a man can expand in a given time. 486 AMERICAN ENGINEER. \uL. 86, No. 9. AUTOMATIC TEMPERATURE REGU-LATOR Most of the first class passenger equipment now in service haselectric current available at all times. This condition makespossible the application of a convenient method of regulating thetemperature when the heating is by steam and from the locomo-tive,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
