Push-Button Safety Gate Guards Defense Plants

Item

Useful for barring unauthorized entry of automobiles at vital defense plants, an electrically-operated safety gate has simple push-button controls. Mounted on the striped top crosspiece, electric lights flash on and off when the gate is lowered and turn off automatically as it rises. The sturdy gate may be used at private switch tracks or as a barrier to stop cars for identification, collection of tolls or inspection.

Title (Dublin Core)
Push-Button Safety Gate Guards Defense Plants
Subject (Dublin Core)
en
en
Article Title and/or Image Caption (Dublin Core)
Push-Button Safety Gate Guards Defense Plants
Language (Dublin Core)
Eng
Temporal Coverage (Dublin Core)
World War II
Date Issued (Dublin Core)
1942-07
Is Part Of (Dublin Core)
Popular Mechanics, vol. 78, n. 1, 1942
pages (Bibliographic Ontology)
54
Rights (Dublin Core)
Public domain
Source (Dublin Core)
Google books
Archived by (Dublin Core)
Enrico Saonara