National boilers, radiators, and specialties: catalog no26 . hole radiator, when it is y4openasindfrlt JTk ^ully °Pened wil1 hea* theheat H of the radiator; when if fs ?Uopen ft£uL»f fi^t^ ?late £t wil1it is , it will heat H of the radiator etc eto TtH tf the radiator; whenin addition to the markings, K ™ ti and onPn «,J2 W1 k 1° be notlced tha*of these is divided in twoby another ntr! ?W *? $*°e b^tween each pairinto eighths. The indicator can beplaced milltf^ *£? ^duated arcmgs, thus graduating by sixteenth, vZ I Y b^weecn these latter mark-fraction of the radiator you may desire there

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National boilers, radiators, and specialties: catalog no26 . hole radiator, when it is y4openasindfrlt JTk ^ully °Pened wil1 hea* theheat H of the radiator; when if fs ?Uopen ft£uL»f fi^t^ ?late £t wil1it is , it will heat H of the radiator etc eto TtH tf the radiator; whenin addition to the markings, K ™ ti and onPn «,J2 W1 k 1° be notlced tha*of these is divided in twoby another ntr! ?W *? $*°e b^tween each pairinto eighths. The indicator can beplaced milltf^ *£? ^duated arcmgs, thus graduating by sixteenth, vZ I Y b^weecn these latter mark-fraction of the radiator you may desire therefore, heat whatever con^K -d J? ght-hand and left-hand lock shields. The gradttef val^sare X* ftSSft ^^^ or ** indicator or with lock shield, as may be preferred Wlth lever handle Price List Graduated Angle Packless Valves w-*ftudne or Lock Shield StylesWith Shells. Without Shells. $4. $ 1H $ IX $ $ Unless otherwise specified^iu^el?^—Fo^i^elw^iSiT 63 NATIONAL HEATING SPECIALTIES Air Valves. i^3l«JK4

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsteambo, bookyear1920