Hardware merchandising March-June 1917 . Three Piece ftsw WithGusset or Gore Piece . * jt;- ^%f ?<•r-IJ--? /W 1 44 - 1 ™ i | i \ 1 1 \ \ / .^r^. /?y THOMAS ST AN FIELD ONE of the most useful pipe fit-tings in furnace construction isthat of an offset boot. It takesthe place of a round to rectangular pieceas well as an elbow in many cases. For instance, if a straight round torectangle piece is used, and the warmair pipe has then to be turned to thehorizontal, this horizontal pipe will bemuch lower down than would be thecase if an offset boot be used. Then an angle elbow can be used, too,u
Hardware merchandising March-June 1917 . Three Piece ftsw WithGusset or Gore Piece . * jt;- ^%f ?<•r-IJ--? /W 1 44 - 1 ™ i | i \ 1 1 \ \ / .^r^. /?y THOMAS ST AN FIELD ONE of the most useful pipe fit-tings in furnace construction isthat of an offset boot. It takesthe place of a round to rectangular pieceas well as an elbow in many cases. For instance, if a straight round torectangle piece is used, and the warmair pipe has then to be turned to thehorizontal, this horizontal pipe will bemuch lower down than would be thecase if an offset boot be used. Then an angle elbow can be used, too,under certain conditions, which wouldreduce friction in the warm air pipe line. This pattern is developed by the tri-angulation method, though the plan isnot used in this case. No matter whatsize or proportions of a filling is re-quired, the method here described canbe adopted. First draw the side elevation shown inFig. 1—B\ A1, B, A, 9, 1. and determinecentre of line 1 as at 5. With 5 as cen-tre, draw the half circle, which is really a one-half profile of the round piece andtakes the place in practice of the halfplan of round part of the fitti
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Keywords: ., bookcentury1900, booksubjectbu, booksubjectimplementsutensilsetc
