A Valuable Patent

Few people fully realize how large a proportion of their coal drops through the grates in their furnaces and is lost. It is safe to say that at least fifteen percent of the hard coal used in Ann Arbor is lost in this way. This would make the loss amount to many sands of dollars every year. In Ann Arbor alone, There have always been numerous ash sifters on the market by I the use of which consumers could avoid this large loss, but they have been so unsatisfactory that but few people have used them. Aid. Emmet Coon saw the necessity of something practical in this line and set himself about devising an ash sif ter that would save all the coal which might iall through the grate in a furnance. His object was to make I one that could be operated easily, quickly and avoid the dust. The dust feature alone has made all the others on the martcet impracticable. In all these respects Mr. Coon has been entirely successfull. His sifter has been in use for about a year past by over one hundred Ann Arbor people. Without exception these trial sifters have given perfect satisfaction. It saves every partiële of the coal that drops through the 'grate, it is so arranged that it takes but a moment to siftseveral day's accumulation of ashes, and, what is of especial importance, the sifter is almost dustless. Mr Coon has not pushed the sales of hisash,sifters,preferring to wait until they had been given a thorough est in actual use in the hands of disïnterested parties. Now that his de vice has demonstrated its value, Mr. Coon contemplates going into the manufacture of his sifter in an extensive way. He may organizo a stock company 30 as to make it possible to push the business all over the country. There can be no que3tion that Mr. Coon has a good thing and, if he goes into the manufacture of his sifter as he now contemplates, it will add an important industry to Ann Arbor.