| 摘要 |
<p>A dry cell or rechargeable battery operated device for thawing frozen locks comprises an electrically heated thawing stick which is adapted to be inserted into the lock. The thawing stick is slidably attached to a housing and movable frame from a first position within the housing to an operative position projecting from the housing. When the stick projects from the housing connecting means are engaged to connect a fine resistance wire within the thawing stick to the dry cell or battery means whereby the resistance wire gets hot. The resistance wire is contained within an insolated conductor inside the thawing stick in order that the thawing stick itself comprises one of the leads attached to the connecting means. The resistance wire is locked within the thawing stick between the middle of the stick and the tip of the stick.</p> |
