Illustrated 1890 & 91 catalogue and price list of Bundy patent radiators made by A.A. Grifting Iron Co (1891)
A. A. Grifting Iron Co · [Jersey City, N.J. : A.A. Grifting Iron Co.] · leaf 129
PET COCK. Fig. 56. … Fig. 91. Can be used for both steam and hot water heating, but is specially designed forsteam. The water formed by the condensation of the steam in a radiator will adhere tothe sides of the loops or sections, leaving the center entirely free from it, and it ison this principal that this air valve…
A. A. Grifting Iron Co. · Radiators -- New Jersey -- Jersey City
Internet Archive · Rutgers University Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-569-340.webp)
