著者

石川 健次郎

出版者

大阪経済大学日本経済史研究所

雑誌

経済史研究 (ISSN:1344803X)

巻号頁・発行日

vol.25, pp.209-214, 2022-01-31 (Released:2022-03-11)

著者

石川 健次

出版者

毎日新聞出版

雑誌

エコノミスト (ISSN:00130621)

巻号頁・発行日

vol.96, no.38, 2018-10-02

著者

石川 健次

出版者

一般社団法人 資源・素材学会

雑誌

日本鉱業会誌 (ISSN:03694194)

巻号頁・発行日

vol.69, no.784, pp.419-421, 1953-10-25 (Released:2011-07-13)

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The coal seam of Shikamachi coal mine, belonging to Hokusho district in Sasebo coal field, is thin, from 0.35 to 0.5 meter high, and soft. The coal of which is called strongly caking coal.Before, the stripping scraper was employed, hand-digging had been held only.We investigated and tested practicaly the stripping scraper as the mining machine that can be applied to the above conditional seam.Now we have used it practically.In this report, we describe simply about the following articles.1. Mechamizm of the stripping scraper.2. The state of operation in faces.3. The results.4. Comparison of efficiency between stripping scraper and hand-digging.