US499373A

US499373A - Blind-stop

Info

Publication number: US499373A
Authority: US
Publication date: 1893-06-13
Anticipated expiration: 1910-06-13

Description

(No Model.)

B. DAVIS & A. GART-NER. a

BLIND STOP.

No. 499,373; Patented June 13, 1893.

- W/TESSES' A TTOHNEYS.

UNITED STATES PATENT OFFICE.

I I e ROBERT DAVIS, OF JERSEY CITY, AND ADOLPl-I GARTNER, OF WEST HOBOKEN, NEW JERSEY.

BLIND-STOP.

SPECIFICATION forming part of Letters Patent No. 499,373, dated June 13, 1893.

Application filed February 20, 1893. Serial No. 462,995. (No model.)

To all whom it may concern.-

Be it known that we, ROBERTDAVI S, residing at Jersey Oity,and ADOLPH GARTNER, residing at West Hoboken, in the county of Hudson, State of New Jersey, citizens of the United States, have invented certain new and useful Improvements in Blind-Slat Fasteners, of which the following is a specification.

The object of our invention is to provide a new and improved fastener for blind slats for the purpose of securely locking the same when in closed position so as to prevent persons inserting their fingers from the outside and raising the blindlock; and the invention consists in the combination, pivoted on a blind slat and provided at its lower end with a beveled shoulder and with a tongue, of an angular keeper fastened on the upperedge of the bottom cross-pieceof the blind and provided in its top with a notch for receiving the pro-- jecting tongue of the latch lever.

In the accompanying drawings, Figure l is a front-view of a blind provided with our improved slat-lock, parts being broken out. Fig. 2 is avertioal transverse sectional view of the same, on line 2 2, Fig. 1, and Fig. 3 is a horizontal sectional view on line 3 3, Fig. 1.

Similar letters of reference indicate corresponding parts.

The plate A is fastened by screws a to the inner surface of the bottom slat B and to said plate A a latch-lever C is pivoted, that is provided with a handle-knob C. Said latch-lever 0 is provided at its lower end with a shoulder D part of which is beveled off or rounded andwhich forms a tongue D projecting from the lower end of the latch-lever. An angular keeper E is fastened to the upper edge of the bottom cross-piece F, of the blind on the inner surface, and is provided at its upper end with a flange G having a notch H extending inward from one end, which notch is adapted to receive the tongue D on the lower end of the latch-lever C; When the slats are not to be locked, the latch-lever O is swung up so that its tongue does not engage .the keeper and the slats can now be shifted freely. When the shafts are to be locked they are first brought in closed position and then the latch-lever O is swung down so that its tongue D passes into the notch H of the keeper E, thereby securely locking the slats in place and preventing them from being opened from the outside or the fingers inserted to open the blind-fastener. As the latch-lever is swung down, its beveled or rounded edge rides over the top of the keeper, so that the latch-lever is slightly pressed upward and exerts an upward pressure on the bottom slat. This causesthe latch-lever to bind on the keeper,th us preventing the disengaging of the latch-lever from the keeper by shaking the lower slats.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

The combination, with a latch-lever pivoted 1 on a blind slat, and provided at its lower end with a beveled shoulder and with a tongue, of an angular keeper fastened on the upper edge of the bottom cross-piece of the blind and provided in its top with a notch for receiving the projecting tongue'of the latch-lever, substantially as set forth.

In testimony that we claim the foregoing as our invention we have signed our names in presence of two subscribing witnesses.

. ROBERT DAVIS.

. ADOLPH GARTNER.

Witnesses:

THOMAS J. MIGGINS, RIOHD. GARRIOK.