The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 443
a safety bolt that bids fair to rev-olutionize present methods of locking boltsand nuts. Heretofore, devices intended toaccomplish a positive locking connectionhave failed most dismally. The nutswould staj in place for a little while—maybe a month or two, but more likelyonly for a few days, then… … a matter of fact, a loose nut is the realcause. Mr. Burnett, with his many active yearsin the foundry game, often thought howvaluable a good dependable locking devicewould be. So, when he had an oi)portunityto investigate an invention along this line,by Mr. George Eckman of Marshalltown,Iowa, he…
Architecture · Building
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