A W BARNHART COMPANY 1958 maximum detention screens vintage catalog

Original building construction vintage catalog A. W. BARNHART COMPANY. Maximum detention screens for hospital and sanitarium windows and porches. Trulock screens installed at the Naval Medical Center in Bethesda, DA. All-Aluminum heavy extruded constructed tubular Detention Screen of 6061 T-6 rigidly heat treated alloy immune to urine. Only Trulock brings you the patented shock distributing mechanism that has been specified by architects and heads of mental institutions since 1939. Medium units of aluminum or steel frames for use when less than maximum is acceptable. Tremendous strength when needed, beautiful appearance. Specifications are given.
Main office and factory was located at 140 Highland St., Port Chester, NY.
This unique 1958 old 4 page technical catalog would make a marvelous addition to your engineering collection. Pages are loose and contain a tiny amount of residual glue on edge.