r has been found advantageous in adjusting the Slidiug Door Rollicr Sheaves. but it is nevertheless true, and a machinist that has the hang of his hammer, the carpenter of his saw, or the miller of his pick,will miss the familiar feeling, The wheel instead of revolving in a confined socket, These… … SLIDING-DOOR ROLLER SHEAVES. New York. The invention was patented May 5, 1863, The length of the slotis dependent upon the dis- from at will by simply increasing the dimensions of the tance the door is required to travel; also upon the relation between the circumference of the wheel and addressing…
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