Grinnell automatic sprinkler head

Head, Automatic-sprinkler

Accession Number: 2009.10.2

Description: Brass casting, threaded 1/2" internal diameter base; arched "harp" arms wrap around diamond shaped white metal heat element secured between the sprinkler orifice plug and the diffuser; nickel-plated brass diffuser screwed to top of harp, edges scalloped and folded toward body; stamped on diffuser, "F. GRINNELL/PATENTED JULY 8-15/AUG 1890"; cast into base of fixture, "155/26"; stamped onto element plate, "PAT. NOV 12 '89/155 (degrees) 2".

Height: 2.75

Width: 2

Depth: 1.75

Date Made: ca. 1925

Place of Origin: New Haven, CT

Collection: APH Collection

History/Provenance: APH Collection

Credit Line: APH Collection, 2009.10

Subjects: Fire extinguishers Insurance Safety

Dimension Notes: overall

Made: General Fire Extinguisher

Material: Brass, nickel, white metal

Updated: 05/07/2009