Eliza A. Abrams, GB189420273A
Improvements in Sash Locks.
Image credit: Abrams, E.A. (1894)
On July 27, 1895, Eliza Alice Abrams of Los Angeles - a dealer in patents - patented a novel sash lock for windows. Her design used opposing pawls and ratchet bars built into the window frame, allowing each sash to lock securely in place and be released with a single concealed key. Her system made windows safer, prevented forced entry, and could also be adapted for car windows and screens.
Date of Application: 23 October 1894
Date of Issuance: 27 July 1895
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Francesca Chiaradia
PhD Candidate in Economics
My research interests include innovation, law, and information economics.