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Cabinet/Low-temperature carbonization

LLM Wiki article / 1 minute read

US Bureau of Mines

The US Bureau of Mines (also referred to as the United States Bureau of Mines) was a federal agency that conducted research on mineral resources, mining safety, and fuel technology.

Institutional role

Two the source archive dossiers place the Bureau in different research contexts:

  • Pittsburgh, PA station — the station that employed bernard-lewis, the physical chemist whose 1931 high-voltage flame-extinguishing experiments are reported in the source archive Blomgren dossier.
  • Fuel-research program — the institutional home of Lewis Cass Karrick, the engineer associated with the karrick-process. The low-temperature carbonization dossier places Karrick's work within the Bureau's fuel-research program, which is the context in which the low-temperature carbonization experiments are said to have been carried out.

Role in the Blomgren dossier (flame extinguishing)

The March 1931 Popular Science Monthly item reprinted in the dossier frames the work in terms of mine safety: fire in a mine is a deadly peril, and explosions and cave-ins may block the work of fire-fighting brigades equipped with ordinary apparatus. Mine officials therefore watched Lewis's experiments with unusual interest.

Lewis demonstrated that a high-voltage electric field could extinguish gas flames, carbon monoxide flames and "fire-damp" flames in the laboratory. See electrostatic-flame-extinguishing.

Role in the low-temperature carbonization dossier

In that dossier the Bureau is background rather than subject: the ingested material does not describe specific Bureau publications, report numbers, or program budgets.

Evidence status and limits of the sources

  • Blomgren dossier: provides only the popular-science report. No Bureau of Mines publication, technical report or follow-up study is included.
  • Low-temperature carbonization dossier: no Bureau report titles, publication dates, or internal document identifiers are supplied in the captured material. If the fuller dossier cites Bureau of Mines reports or bulletins, those citations should be added here verbatim when available.

Related work

Source notes & attribution
  1. https://rexresearch.com/blomgren/blomgren.htm
  2. https://rexresearch.com/karrick/1larstz.htm

Dossier visual record.

All 28 figures

Source illustrations for Low-temperature carbonization. Captions identify the document and evidence type.

Articles that refer to this reading
Article
5 min

Karrick / KLTCUSP Capture: A Patent-and-Figure Dossier for Low-Temperature Carbonization

This is a source capture of the page karrick2/kltcusp.htm , filed in the archive's low-temperature-carbonization (LTC) folder. Unlike the earlier Karrick dossiers in the corpus, which carried explanatory prose about the process, this page is primarily a figure-and-patent dossier : it presents a set of GIF images, most of which a

Article
2 min

Karrick Patent Set (Seven US Patent Drawings in the KLTCUSP Capture)

The karrick2/kltcusp.htm capture reproduces eight GIF images, seven of which are named with bare seven-digit numbers. In this archive's convention, such filenames denote US patent numbers, and the images are the corresponding patent drawings. This page consolidates those seven references into a single record rather than creating

Article
4 min

Karrick Process

The Karrick process is a named low-temperature carbonization (LTC) route for coal, associated with Lewis Cass Karrick and documented in a source dossier. It heats coal below conventional coking temperatures to drive off volatiles, leaving a solid char together with condensable tar/oil and a combustible gas stream.

Article
4 min

Karrick Process Dossier (Fourth Capture): Low-Temperature Carbonization at the source archive

This page records a fourth capture of the source dossier on the karrick-process and Low-Temperature Carbonization (LTC) (LTC). It is a variant-provenance record, not a new body of evidence. The underlying subject — Lewis Cass Karrick's low-temperature carbonization work at the US Bureau of Mines , as described in a 1932 Universi

Article
4 min

Karrick Process Dossier (Second Ingestion): Low-Temperature Carbonization at the source archive

This page records a second source file covering the same subject matter as the earlier Karrick dossier: the low-temperature carbonization (LTC) of coal associated with Lewis Cass Karrick and the US Bureau of Mines . The file is a compilation of article text, patent references and three images ( karrick1.gif , karrick2.gif , karr

Article
4 min

Karrick Process Dossier (Third Capture): Low-Temperature Carbonization at the source archive

This is a source dossier on low-temperature carbonization (LTC) of coal, organized around the Karrick process and its namesake, Lewis Cass Karrick . The source identity ( karrick3/karrick3.htm , folder context "dossier 10 — Low-temperature carbonization") places it as the third Karrick page in the source archive collection.

All 8 referring articlesArticle
3 min

Ketchum 1ltcre.htm

This record covers a source page captured from the URL [source note 3]. The page is a full-text reproduction of R. Ketchum, et al., Low Temperature Carbonization of Utah Coals , a report of the Utah Conservation & Research Foundation to the Governor & State Legislature (May 1939). It is a Ketchum-authored treatment of Low-Temper

Article
2 min

Lewis Cass Karrick

Lewis Cass Karrick is an American fuel technologist and twentieth-century engineer for whom the karrick-process is named. The process is a low-temperature carbonization route for converting coal into char, tar/oil and gas. He is the central subject of a source dossier in the archive's low-temperature carbonization grouping.

Keep following.

Thematic connections, not evidence of a shared mechanism