Democratic Sentinel, Volume 20, Number 19, Rensselaer, Jasper County, 15 May 1896 — A VENTILATED MANHOLE. [ARTICLE+ILLUSTRATION]

A VENTILATED MANHOLE.

With a Dust-Pan that Mny Be Readily and Conveniently Drained. A perforated man-hole cover, with dustpan attached, is Illustrated herewith. This cover is designed to perform the usual services in the way of ventilation. Its principal claims of novelty are the form'of the dust pan, and the provision for draining the same, all as shown in Figure 1.. For combination

lamp-holes or flushing holes and ventilators the form of cover shown by Figure 2 has been devised. In this form, the manufacturers state, sufficient space is provided below the cover for a year’s accumulation of dust and dirt.

THE VENTILATED MANHOLE.