however inexpe- falling just as much as the lower one rises. raising and lowering window sashes, and holding them rienced, or any workman, however unskillful. It will be seen that the middle stop between the The saw, A, is strained between the ends of the two in any desired’ position. sashes must… … Ist of January and Ist of July each year, Every number contains six- teen pages of useful information, and from five to ten original engray- ings of new inventions and discoveries, all of which are prepared ex- pressly for its columns, lower sash, and the other end to the middle of the up-…
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