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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.
"For a new and useful machine for Fastening and Securing Window Shutters; Truman Bartholomew, New York, June 30.
This machine consists of two latches, and two catches, one pair of them to fasten the shutter, when open, against the wall, the other to secure it to the sill when closed." A particular description we should deem superfluous, as the contrivance possesses no great novelty. It will, undoubtedly, answer the purpose equally well with fifty others, patented and unpatented, which have been offered to the public, and probably better than several of them.'
“This lock is intended as an economical substitute for the mortise lock, for parlour and bedroom doors. In it, the common sliding or spring bolt, is made to answer its ordinary purpose, and also, to serve as a key bolt. A spring bolt is made of sufficient strength for the purpose intended, and a mortise is made in the edge of the door to receive this, and allow it to play freely. A brass plate for the bolt to play through, is let into the edge of the door, where it is to be screwed firmly. The inner end of the bolt may pass through a thin plate, which may be let into the door, by making a small mortise in the rail for that purpose. The bolt is to be forced out by a spiral spring, to receive which, there is a mortise, or slot, made through the bolt, just within the edge of the door; a piece of metal plate, being passed through the door, and also through this mortise, for the back end of the spring to bear against, whilst the other presses out the bolt: or the spiral spring might be put on the far end of the bolt, and bear against the bottom of the mortise.
Two knobs, with screw shanks, are screwed into the bolt, one on each side of the door, in which mortises are made for that purpose; or one only may be used. When there are two, the piece of metal, for , the back end of the bolt to slide in, may be omitted, as the shanks of the knobs, and the plates upon which they are to slide, will fulfil this intention. These knobs, it will be seen, are not to turn, but to be pushed back, like that of the old fashioned street door lock.As a spring bolt, the fixture is now complete; but, to make it answer the purpose of a lock, a small one, similar to those used for drawers, is let in from one side of the door, so that its bolt may stand directly under (or above) the edge of the spring bolt. A notch is filed in the edge of the spring bolt, to receive the bolt of this small lock, which thus secures it in its place. A second notch may likewise be made to retain the spring bolt entirely within the door.
An escutcheon is used, sufficiently large to cover the opening where this lock is let in. By this contrivance, a small key answers for room doors, and the whole cost will be less than that of the ordinary lock.”
Journal of the Franklin Institute Vol. 6, Sept. 1829 pg. 194
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