Ikegai Standard Engine Lathe No.1

This lathe is an English-type nine-foot lathe that was manufactured by Shotaro Ikegai, the founder of Ikegai Factory (later Ikegai Iron Works; currently Ikegai Corp.), the first manufacturer of machine tools in Japan, and his younger brother Kishiro in 1889 as a facility machine for the factory of their company.

The center-to-center distance is 5 feet (actual measurement: 1,550 millimeters), the bed is of the English type and a cutout is provided. This is the oldest engine lathe manufactured in Japan.

It is said that there were two 12-foot and 6-foot lathes of the English type in the factory. This is a monumental machine tool in the history of the machinery industry in Japan, indicating the high technical level of the Ikegai brothers, who opened up the road to domestic production of the mother machine in an environment with a lack of machinery and materials.

On exhibition

National Museum of Nature and Science

Hours open:
9:00–17:00 (Entry closes at 16: 30.) 9:00–20:00 (Entry closes at 19:30.) only on Fridays
Admission fee:
620 yen for adults, free for senior high schoolers or younger
Days closed:
Mondays (Tuesday if falling on a holiday) year-end/New Year’s holidays (Dec. 28–Jan. 1)
7-20 Ueno Koen, Taito-ku, Tokyo 110-8718
Tel (exhibit facilities):
5 mins. on foot from the park exit of Ueno Sta., JR Line

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