Who has not been vexed when they have tried to wind up the inside window shade and found the cord too slack, and the shade come down with a run, or perhaps the corel was too tight, and it would not move at all? Who has not also pinched their fingers or broke their thumb-nail in the attempt to fix and adjust the refractory catch ? Nearly every one has, more or less, felt the inconvenience of the awkward fasteners now in use, and we now engrave one that has none of these disadvantages, and is simple and elegant. It consists of an ornamented plate, A, which can be secured to the frame of the window by screws or nails ; there is cast on this a projection, B, through which a worm is cnty making it answer the purpose of a fixed nut, through this there passes the screw, C7 fa fine thread provided with a milled head, F, by which it can b e turned s o a s to tighten o r loosen the cord which is passed round the pulley, E. The screw, C, is connected to D, which forms the pulley's support by the plane head, c, lower at the top than bottom, and this fitting into a properly shaped hole in D, so that D can turn round, and the screw can turn and depress or elevate it without disturbing the position of the pulley, which rotates on an arbor, c. The two small diagrams show a side view of the pulley and rest, and an end view of the same. It is a most useful little invention, and was invented by Charles Schleier, of Brooklyn, N. \ Y., and patented by him January 26, 1867* Mr. S. has assigned the invention to John H. Bonn, of 229 Broadway, this city, from whom all further particulars may be obtained.