SCHLAGE MASTER KEY SERIES

New keyway designs may be protected for a limited time by patent protection, which expires after a set number of years. Like many lock manufacturers, Schlage uses milled complex keyway shapes to mechanically prevent some non- OEM keys from entering or operating a lock. In May 2009, demolition began on the Schlage Bayshore site though the original 1926 Spanish Colonial 'Old Office', designed by local architect William Peyton Day will remain, the rest of the site is planned to become affordable, green housing. UPC owned an adjacent parcel on which it had intended to develop housing, but the groundwater had been contaminated by the Schlage Lock factory, and UPC filed suit seeking to make Ingersoll Rand responsible for cleanup. To settle an environmental lawsuit, the 12.3-acre (5.0 ha) Bayshore factory site was transferred to Universal Paragon Corporation (UPC) from Ingersoll Rand in 2008. Īfter 73 years of operation, the Schlage Lock Co. Schlage remained an Ingersoll Rand subsidiary for nearly 40 years, until Schlage and other security hardware companies were spun off as part of Allegion, formed in December 2013. Schlage had just completed a move from the Old Office building to a three-story New Office located nearby, at the corner of Bayshore and Leland. In 1974, the year the company was acquired by Ingersoll Rand, Schlage employed 1,600 and was the largest manufacturer in San Francisco. The company was also busy post-war acquiring smaller hardware manufacturers, including the California Lock Company, Peabody Company, LCN Closers, the Von Duprin Factory, and the General Lock Company (Pontiac, Michigan).

After the war, the company supplied lock hardware to the Pan Am Building (1964) and the Bank of America Headquarters (1969) skyscrapers. During World War II, Schlage Lock manufactured shell casings and bomb rail fuses. Ĭharles Kendrick took over as Chief Executive after making a sizable investment in the company, and served as Chief through his retirement in 1969. Eight buildings were eventually erected at the Bayshore complex, the first two of which (the Old Office and Plant 1) were dedicated in a ceremony on Jattended by dignitaries including Mayor James 'Sunny Jim' Rolph. Because the bored cylindrical lock had a decided ease of installation advantage over the contemporary mortise lock, demand for the Schlage-designed lock rose and the company would purchase land in Visitacion Valley in 1925, which would eventually become the company's Bayshore factory and administration complex. The first factory (in 1923) was at 49 Shotwell Street. Schlage's first shop was at 229 Minna Street, and he moved to 461 Bush Street, where many of his key patents were developed. Schlage would later make a 1925 filing for a push button cylindrical lock fusing the two 1920 patents with the 1923 patent.

SCHLAGE MASTER KEY SERIES

Patent 1,674,841, filed in 1923, which was sold commercially as the Schlage 'A' series lock. This series would ultimately culminate in U.S. However, Schlage's key invention was the bored cylindrical lock, which evolved through several iterations, including a 1917 filing for a mortise mechanism which locked when the knob was tilted two filings in 1920 (in April for a lock requiring one hole and a surface rabbet rather than a complex mortise pocket and October for a mortise with the lock mechanism activated by a button coaxial to the knob). Walter Schlage had already secured several patents dating back to 1909, when he patented a doorknob that would also complete an electrical circuit so that, for instance, the lights would turn on when the door was opened.

The Schlage Manufacturing Company was founded by inventor Walter Schlage (d. 1946) in 1920 with the help of three businessmen who each contributed $10 to become equal partners. History The 1926 'Old Office' of Schlage Lock lies just west of a tunnel constructed for Southern Pacific's Bayshore Cutoff Schlage is one of the most popular brands of consumer and commercial locks in the United States. Schlage also produces high-security key and cylinder lines Primus, Everest, and Everest Primus XP. Schlage was headquartered in San Francisco from its inception until it relocated to Colorado Springs, Colorado in 1997. Schlage ( / ʃ l eɪ ɡ/ SHLAYG) is an American lock manufacturer founded in 1920 by Walter Schlage.

Schlage master key