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Pair of Cast Iron Lever Sash Locks, Pat. July 2, 1878 Item # R0874
The July 2, 1878 patent date on this sash lock refers to the Morris patent, which developed the “drooping” lever on the operating handle that fell into a locking slot on the base plate.
About this type of sash lock, Clarence Howard Blackall states in his 1889 reference “Builder’s Hardware” that “lever sash fasts with locking lever are those in which the lever works without a spring but is held either closed or open by means of an auxiliary lever, a form of sash fast which has met with considerable favor as being one of the first which had any right to the qualification of being burglar proof. The action is perfectly simple. The lever is on the lower sash and is held either open or shut by a smaller hinged lever which drops by gravity into the rebates of the bed plate.” Ireland Manufacturing Co. was one maker who popularized Morris-type sash locks.
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