EDISON LABORATORY Edison National Historic Site West Orange, New Jersey Volume 1

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The drill press, miter trimmer, ripsaw, jointer, cross-cut saw, small lathe, and bandsaw formed irregular row down the center the shop floor. There evidence indicate when these changes took place, whether they happened gradually all once. There sink the southeast comer. There way telling what stood the north end the shop if, for example, the bandsaw was already place. Building Pattern Shop, Period III: 1915-1931 A photograph the pattern shop (figure 43) taken January 1917 and 1920 inventory the New York Appraisal Company reflect the general arrangement of machines and benches that exists today. drill press was installed the middle the floor. Lumber racks, for the vertical storage long stock, cover about third the south wall. Two new table saws were installed, one set for ripping, the other for cross-cutting. Marking stencils hung from nails the east end wall and stencil brushes stood in cans the bench below. Racks front the windows held some each man’s most commonly used personal tools: chisels, dividers, squares, patternmakers’ scales, screwdrivers, bit-braces and bits. The patternmakers’ bench lined the west wall, with a work station, tool rack, and vise front each window. Gluepots and planes stood the bench and clamps hung from racks overhead. The door sander, horizontal boring machine, double bladed table saw, and planer disappeared and the scroll saw was banished the basement. Photographs the shop taken around 1890 and 1917, show that was substantially rearranged (figures and 43). Building Pattern Shop, Period II: 1901*1914 No photographs inventories the pattern shop survive from Period II. Six incandescent lamps with conical reflectors are visible, suspended their wires from the collar ties. bipolar motor and rheostat panel are located the southwest corner the shop. Work space the bench was supplemented three rolling tables, each topped cast-iron surface plate. The belt the extreme right foreground the photo probably carried power from the lineshaft the basement the countershaft for second lathe. The patternmakers* lathe was turned around and moved against the east wall (figure 42). cabinet, barely visible the northeast corner the 1917 photo, still contains leather fillets for easing the interior comers patterns and cast zinc letters and numerals that were tacked patterns identify the 108 .blade table saw behind. Given the age the new additions, reasonable conclude that the changes occurred sometime between 1900 and 1915