The Internet Archive has a preservation copy of this work in our general collections.
An Improved Dumbwaiter
NOVEMBER 8, r890.J �'itntifi' �mtri,an. AN IMPROVED DUMBWAITER. plied to the seam, and is prevented from entering the We give an engraving of a dumbwaiter recently iuside of the can body during the pr ocess of soldering. patented by Mr. Anton Larsen, of 413 and 415 East In this manner the spoiling or poisoning of the con· Twenty-fourth Street, New York City. This appara-tents of the finished can is avoided, and, furthermore, tus is mperior to others in point of simplicity, posi-a considerabiedoi:10.1038/scientificamerican11081890-297 fatcat:s353ncbvpbbnpc2djbd2ztw2ja