Show ventilator KEEPS OUT RAIN device for uee use in building or cave may be constructed from joint of stovepipe it la is often desirable to havo have a build ins ing or cavo cave well ventilated and still havo have it t so that no ain aln can enter through tho the ventilator such a venti lator may b 3 constructed from a joint of and a can mab is 1 at least an inch arger aa in diameter than the stovepipe it Is to cover and several inches high A brace made from a of strap iron should be constructed as in fig I 1 and riveted to tho the sides of tho the pipe says tho the iowa homestead the can Is then slipped oven this and riveted through its bottom tu to the braco brace have re F I 1 2 rainproof ventilator the lower lover edge of the can abo it four inches below the upper edge of the stovepipe this should leave a space of a couple of inches between the bottom of the can and the top edge of the stovepipe to tu allow for the free circulation of all alt as shown shon in fig 2 |