US119479A - Improvement in shutter-fasteners - Google Patents

Description

ITNITED STATES PATENT GEEICE.

JOHN F. SMITH, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN SHUTTER-FASTENERS.

E Specification forming part of Letters Patent No. 119,479, dated October 3, 1871; antedated September 16, 1871.

To all whom itvmafy concern:

Be it known that I, JOHN F. SMITH, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and Improved Blind- Fastener and Opener, of which the following, when taken in connection with the accompanying drawing, is a full and exact specification.

My invention consists of an arrangement, fully described below, in which the -blind is kept securely closed by means of a staple which catches in a hook placed in the blind. Upon releasing this staple a concealed spring sends the blind quickly back against the house. There are various advantages in this invention, all of which are fully set forth below.

In the accompanying drawing, Figure l is a sketch of my invention, showing the blind in the act of flying back. Fig. 2 is a section of the lower part of the blind, showing the position of the staple when conned in the hook. Fig. 3 represents the staple which holds the blind when shut. Fig. 4 represents the staple which secures the blind Ywhen open.

the blind upon the house, but which is not a part of my invention.

In practical operation my invention works as follows: Taking the blind as it is found in Fig. 1, in order to close it I reach out my hand and pull it forcibly toward the window until the hook j' snaps over the staple cl. To open the blind I simply press the hook f, closing the spring, when, the staple d releasing thehook f and the spring e acting upon the blind a, the blind iiies quickly back and snaps the hook j' over the staple g, conning the blind in place at the side of the house.

The following are some of the advantages my invention affords which are not common to blinds manufactured in the ordinary manner: No screws are required in attaching the fastener and opener.

VThe blind cannot be opened from the outside, as

it fits closely to the sill. It is self-opening. The hand is not obliged to extend outside the window, and the window itself need not be opened more than two or three inches. This is especially advantageous in case of stormy weather. All noise and rattling are avoided when the blind is shut by the pressure of the spring e. The exertion rei quired in opening the blind is so slight that a child can operate it without any dificulty.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, 1s-

The combination and arrangement of the spring c, staple d., and hooksf, as and for the purposes hereinbefore described.

JOHN F. SMITH.

Witnesses:

HENRY W. WILLIAMS, WILLIAM H. MUNROE.

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