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- Q5321786 description "American inventor".
- Q5321786 description "American inventor".
- Q5321786 subject Q10102489.
- Q5321786 subject Q7012009.
- Q5321786 subject Q8077342.
- Q5321786 subject Q8151691.
- Q5321786 subject Q9073497.
- Q5321786 abstract "E. C. Singer was an American engineer (and the nephew of Isaac Singer, inventor of the sewing machine) who worked on secret projects for the benefit of the Confederate States of America during the Civil War and who invented the spar torpedo. Singer's torpedo was a large explosive device mounted on the tip of a long spar. It was detonated by means of a trigger mechanism adapted from a rifle lock (see flintlock mechanism for a similar device). The spring-loaded trigger was detonated by means of a long cord attached to the attacking vessel. The attacking vessel rammed its target, embedding the barbed torpedo in its hull, then backed off. When the attacker reached the limit of the trigger cord, the torpedo was detonated.".
- Q5321786 wikiPageWikiLink Q10102489.
- Q5321786 wikiPageWikiLink Q1784338.
- Q5321786 wikiPageWikiLink Q312011.
- Q5321786 wikiPageWikiLink Q369555.
- Q5321786 wikiPageWikiLink Q49013.
- Q5321786 wikiPageWikiLink Q7012009.
- Q5321786 wikiPageWikiLink Q8077342.
- Q5321786 wikiPageWikiLink Q8151691.
- Q5321786 wikiPageWikiLink Q81931.
- Q5321786 wikiPageWikiLink Q9073497.
- Q5321786 name "Singer, E. C.".
- Q5321786 shortDescription "American inventor".
- Q5321786 type Person.
- Q5321786 type Agent.
- Q5321786 type Person.
- Q5321786 type Agent.
- Q5321786 type NaturalPerson.
- Q5321786 type Thing.
- Q5321786 type Q215627.
- Q5321786 type Q5.
- Q5321786 type Person.
- Q5321786 comment "E. C. Singer was an American engineer (and the nephew of Isaac Singer, inventor of the sewing machine) who worked on secret projects for the benefit of the Confederate States of America during the Civil War and who invented the spar torpedo. Singer's torpedo was a large explosive device mounted on the tip of a long spar. It was detonated by means of a trigger mechanism adapted from a rifle lock (see flintlock mechanism for a similar device).".
- Q5321786 label "E. C. Singer".
- Q5321786 givenName "E. C.".
- Q5321786 name "E. C. Singer".
- Q5321786 name "Singer, E. C.".
- Q5321786 surname "Singer".