For examples,
see Vouchers 504, 697, and 698.
The engine had single horizontal cylinder with 11-inch bore, 30-inch stroke,
and ten foot diameter flywheel.52
The boilers generated steam heat the laboratory complex and drive several
steam engines. 1887, Edison purchased three Babcock and
Wilcox boilers 219 horsepower.H.Building 6
This structure divided into two rooms, the boiler room (positioned next to
Building and engine house.
84 F. The first prime mover erected was forty horsepower C.
Brown engine, which was installed pit the east end the heavy machine
shop.
In attempt secure large order for belting, F.H.
. Thesé large boilers were made order, was
the practice this time, and came with ornamental fronts embellished with the
Edison name.
62 Charles Batchelor diary, catalog 1337, September 19, 1887. Underwood, president the
Underwood Manufacturing Company, offered install his company’s patent
cotton-leather belting for free.H.
These ran the dynamos which provided electric light and power the laboratory. Underwood Charles Batchelor, October 19, 1887 and Charles Batchelor Underwood,
October 21, 1887 (in 1887, WOL-Suppliers, General, D-87-56).
83 C. Brown Company Charles Batchelor, May 1887 (in 1887, WOL—Suppliers, General, D-
87-56); Voucher 725, October 1887. Using technique that had worked with other
vendors get unusually deep discounts, Batchelor reminded Underwood that "we
shall have, always have had, large number visitors from all parts the
world.63
Two Armington and Sims steam engines, one 125 horsepower and one 80
horsepower were installed the power house (as Building was soon called).H.
Coal was probably kept the space between Buildings and 4. This provided the power for lineshafts both the first and second floors."64
26
51 Contract between TAE and Babcock Wilcox, August 24, 1887 (in 1887, WOL-Suppliers, General,
D-87-56).61 One these was the first piece machinery delivered to
the laboratory, arriving September 19, 1887. Underwood got the order
