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

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The horizontal boring mill was on the opposite side the central aisle. The four five hanging incandescent bulbs with flat reflectors would have done little provide necessary light for the work. Dickson (figure 99) shows the shop appeared around 1890. The large machines the first floor machine shop were built order. 450 Voucher 784, November 16, 1887; Voucher 725, October 20, 1887., and Jno. Other large machines included two Putnam engine lathes, one with huge 64-inch swing and 17-foot-long bed, the other with 30-inch swing and 12-foot bed. Vouchers indicate that the shop had least one Bridgeport engine lathe with 16- 20-inch swing and six-foot bed, Bogert engine lathe with 16-inch swing and six-foot bed, and Pratt Whitney lathe of the same dimensions. Bullard was exclusive agent for Brown Sharpe, Bridgeport Tool Co. Manning, Maxwell, Moore controlled sales Putnam and Hendy tools., Slate Machine Co. The photograph shows three more small lathes and what may horizontal drum sander the south side, toward Lakeside Avenue. 132 .450 Many the small and medium sized lathes, shapers, and drill presses were purchased stock items. least two small lathes and drill press were installed the north (courtyard) side the shop. The faceplate and tailstock the 64-inch Putnam lathe are visible through the headframe the planer.451 A photograph taken W. Bogert. They are big that they are supported brick piers that had to built before the shop’s floor was framed. E. The 30-inch Putnam lathe, which now stands the south side the shop, was first placed the aisle the north side toward the courtyard. The latter two remain in the shop today. The benches that line the two long walls today were place, as were the radial drill and 42-inch planer. Philadelphia’s Bement, Miles, Company made five the largest machines in the shop: horizontal boring mill with six-foot table, 20-inch planer, 20-inch lathe, six-foot universal radial drill, and 42-inch planer.equipped shop that period. 451 Voucher 138, May 18, 1887; Voucher 450, April 27, 1888; Voucher 1081, September 24, 1888; Voucher 1422, December 10, 1888.L.449 449 Joseph Taft, "Specifications Machinery Foundations" [summer, 1887] 1887, WOL-General, D-87-55; Planer: Voucher 232, March 31, 1887, also Bement Miles Charles Batchelor, October and 15, 1887 (in 1887, WOL-General, D-87-55); Radial Drill: Voucher 233, February 1888, Inspection Certificate, February 1888 (in 1887, WOL-General, D-87-55). Work this shop depended almost entirely daylight. Batchelor made point ordering machines from well-known manufacturers with reputations for first class products.K.P