. Chemical development Section [and] Mechanical Research and Development Section; summary of achievements, 1917-1918. LATEST TYPE MILLER TIS30T MASKWITH GESR •3294 lUTEBIOR VIEW OF MILLER TYPjilTIS30T ikiASK SHOvvIUG 3P01GERUBBER BAhii AMD VEJSTILATIWGTUBSS. opening in the inner wail, arid is distributed between theeye-pieces in the same manner as the mask described general comfort and efficiency of this mask was improvedby altering the size and shape of the curing form to eliminatall unnecessary dead air space. A second mask of the same general type was designed inwhich th
. Chemical development Section [and] Mechanical Research and Development Section; summary of achievements, 1917-1918. LATEST TYPE MILLER TIS30T MASKWITH GESR •3294 lUTEBIOR VIEW OF MILLER TYPjilTIS30T ikiASK SHOvvIUG 3P01GERUBBER BAhii AMD VEJSTILATIWGTUBSS. opening in the inner wail, arid is distributed between theeye-pieces in the same manner as the mask described general comfort and efficiency of this mask was improvedby altering the size and shape of the curing form to eliminatall unnecessary dead air space. A second mask of the same general type was designed inwhich the inhalation tube, clarifying tube and eye framesare molded in one piece. The inlet tube comes in from theleft side under the eyepiece and curves up between the air passes out through a simple brass Stamping whichpermits the flutter valve and guard to be inclined at a verylarge angle from the chest. The lower portion of the maskis designed so as to fit the contour of the chin eliminatingthe necessity of a chin rest. The mask is fitted with a non-dimming arrangement con-sisting of a soft sportge rubber dam which fits over the noseand cheeks, separatin
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashington, bookyea
