Naval Ordnance Factory - Kaigun Heiki Seizosho

...The Army started out with the Tokyo Artillery Arsenal (1868, focused on rifle manufacturing, based on the Edo shogunate's Sekiguchi Manufacturing Works) and the Osaka Artillery Arsenal (1870, focused on gun manufacturing, based on the Heijo-shi which had moved the machinery and workers from the Nagasaki Ironworks to Osaka Castle).While carrying out repairs and replicas of imported products, the Army imported labor and technology from Europe and the United States.By 1887-90, the Army was able to mass-produce a certain amount of weapons, and the Murata rifle (improved from the 13th year (1880) to the 18th year (1889) to the repeating rifle (1889)), 7 cm breech-loading field guns and mountain cannons represented the technological achievements of this period. The Navy took over Yokosuka Shipyard and other facilities that had been built by the former shogunate, placing them under direct control of the Navy Ministry in 1872, and in 1874 established the Naval Weapons Factory in Tsukiji, Tokyo (machinery from the Akabane Works Branch of the Ministry of Public Works was transferred there, and it came to be called the Naval Arsenal in 1897). Furthermore, the Kure and Sasebo Naval Naval Districts were established (opened in July 1889), and arsenals were set up within them, and the Maizuru Arsenal was also established (October 1901), creating a system of four major arsenals.

*Some of the terminology used to refer to the "Naval Ordnance Factory" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…陸軍は東京砲兵工廠(1868年，小銃製造中心，幕府の関口製作所が母体)，大阪砲兵工廠(1870年，火砲製造中心，長崎製鉄所の機械と職工を大阪城内に移した造兵司が母体)を起点とし，修理と輸入品の模造をおこないつつ，欧米から労働手段･技術を輸入して，1887‐90年には一定の兵器の量産が可能となり，村田銃(十三年式(明治13年)→十八年式→連発銃(明治22年)と改良)，7センチ後装式野砲･山砲はこの時期の技術的到達点を示している。海軍は旧幕府が建設していた横須賀造船所等を接収して，1872年に海軍省直轄とし，74年に海軍兵器製造所を東京築地に新設(工部省赤羽工作分局の機械等を移し，1897年より海軍造兵廠と称する)。さらに呉，佐世保海軍鎮守府設置(1889年7月開庁)でその内部に工廠を併置し，また舞鶴工廠を設置(1901年10月)し，四大工廠体制が構築された。…

※「海軍兵器製造所」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報