US558319A - Blind-stop - Google Patents

Description

(No Model.)

L. H SMITH; BLIND STOP.

Patent-ed Apr. 14, 1896.

I zjvmwz'oz' I m 7/41 UNITED STATES PATENT OFFICE.

LEIVIS II. SMITH, OF ELMIRA, NEIV YORK.

BLIND-STOP.

SPECIFICATION forming part of Letters Patent No. 558,319, dated April 14, 1896.

Application filed September 19, 1895. Serial No. 562,937. (No model.)

To all whom it may concern:

Be it known that I, LEWISII. SMITH, a citizen of the United States, residing at Elmira, in the county of Ohemung and State of New York, have invented certain new and useful Improvements in Blind-Stops; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of my invention is to provide an improved construction of device for locking the slats of blinds when closed and for holding the same open or in intermediate positions, that may be economically manufactured, readily applied, and easily manipulated.

In the accompanying drawings, which form a part of this specification, Figure 1 is a perspective View showing my invention applied to the blind with the slats locked in closed position. Fig. 2 is a similar view showing the slats in the open position in full lines and in an intermediate position in dotted lines, and Fig. 3 is a detail view of the parts of my device.

Like letters of reference in the several figures of the drawings designate corresponding parts.

A designates the slat-rod, and B the lower stile of the blind.

O is a strip of metal rigidly secured to the lower end of the slat-rod and having a part or tongue a, with a notch b at its rear side, extending below the end of the rod. In its lowered position this tongue passes down into a narrow socket or groove d, formed in a plate or bracketD, fastened to the stile. This strip 0 has a pin 0 at its upper end that is pressed into the rod when the strip is secured thereto. The shoulder c, forming one side of the notch 19, rests on the stile, and the lower end of the tongue or projection 0'' extends into the groove d when the slats are closed. The tongue permits a slight longitudinal play of the rod when in the closed position without leaving the groove, and thus prevents the liability of injuring or damage to the parts were it carried beyond the walls of the groove.

The groove or socket dis formed in a part d, that extends out perpendicularly from the base of bracket D, and pivoted at the outer upper corner of this extension 61 is a latch or dog E, that turns down into and lies in a substantially horizontal position in the upper part of the groove. Its free end, which is bent aside, as shown at e, to form a finger-piece, enters a transverse notch 01" at the inner end of the upper edge of the extension, so that when the rod is raised to close the slats the end of the latch forms an abutment to lock the lower end of the tongue, and consequently the slatrod, in the closed position of the blind-slats.

The width of the groove and the thickness of the tongue or lower end of the strip will be such as to produce enough friction between them when the tongue is turned down into the groove to hold the slats in any intermediate position.

A short piece of wire or rod F may be used to connect the lower slat-rod with the upper one.

It will readily be seen that when the latch is turned into the groove to lock the slats that it presses against the strip 0, and besides securely locking the slats prevents any rattling of the parts.

An important advantage in having the latch lying in the plane of movement of the rod and perpendicularly to the base of the bracket lies in the fact that the parts may be made light and cheap without impairing the durability of the device or security of the look.

It is plain that the bracket may be cast, or stamped, or pressed from sheet metal. The walls of the extension D will preferably be thin, so as to obtain a yielding or elastic hold on the tongue.

IVhat I claim, and desire to secure by Letters Patent, is

l. Ablind-stop comprising the strip 0 constructed to be rigidly secured to the slat-rod, and the bracket D adapted to be fastened to the stile having a part or extension (1 with the groove cl lying perpendicularly to the base of the bracket,the lower end of said strip adapted to enter the groove, and a latch pivoted to the outer upper corner of the extension and constructed to form an abutment for the lower end of the strip at the inner end of the groove, substantially as shown and described.

2. A blind-stop comprising the strip 0 constructed to be rigidly secured to the slat-rod having the shoulder c to rest upon the stile stantially as and for the purposes shown and 10 and projection c" at itslower end, the bracket described. D adapted to be secured to the stile having In testimony whereof I affix my signature the part or extension d with the groove cl in presence of two witnesses.

5 lying perpendicularly to the base of the bracket and having notch d at its inner edge, LEXVIS II. SMITH. and the latch E pivoted at the upper outer Vitnesses: corner of the extension d and bent at its free O. F. GALE,

end or formed as at e to engage notch cl, sub- CHAS. DAVIS.

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