US19751A - Outside blinds - Google Patents

Description

UNITED sTATEs PATENT oEEIoE.

JNO. E. GLOKEY, OF WASHINGTON, DISTRICT OF COLUMBIA.

OPENING AND CLOSING OUTSIDE BLINDS.

Specification of Letters Patent No. 19,751, dated March 30, 1858.

To aZZ whom it may concern:

Be it known that I, JOHN E. CLoKEY, of the city of Washington, in the District of Columbia, have invented certain new and useful Improvements in Apparatus for Opening and Closing Outside Blinds or Shutters; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specication, in which- Figure l represents a vertical transverse section in the plane 1-2 and Fig. 2 a horizontal section in the Vplane 3 4.

The letters of reference indicatek the same parts in both figures.

The outside blinds a, and a', are hinged to the window frame Z), in the usual manner, at c. Bent levers Z have their fulcra at e, where they are secured to the frame by the pivot screws f, which pass loosely through holes in the levers allowing a slight degree of play. Guide bars g, are secured to the inside of the blinds, and move freely in slots in the outer ends of the levers cZ, and are connected thereto by the vert-ical friction rollers h., which traverse between the bars g, and the plates z'. Catches la, are fixed upon the frame to receive the levers when the blinds are opened to their full extent, and to reta-in them in that position, and catches Z, act in the same manner to secure the blinds when closed. Gains m, are cut in the bottom of the lower sash to admit of t-he free movement of the levers.

The blind a, being open and secured in that position by the lever d, which has fallen by its gravity into the notch of the catch it is closed in the following manner. The stud or handle 0, upon the inner arm of the lever is first pressed down, the angle y?, of the lever becoming its fulerum. The play upon the pvot screw allows the outer end of the lever to be slightly elevated to the position shown in red lines in Fig. l. This releases the lever from the catch 7c. The handle 0, is then moved horizontally toward the side of the frame, closing the blind by the action o-f the outer end of the lever upon the bar g. By then removing the pressure from the handle, the gravity of the lever causes it to take into the catch Z, thus securing the blind without further trouble, in such a manner that it cannot be readily opened from the outside.

The blind is opened and thrown back against the outer wall, by pressing the handle down (this relieves the lever from the catch Z) and then moving the handle horizontally from the side of the frame toward its center; by again removing the downward pressure, the lever falls into the catch Za, and the yblind is again secured in its open position, as before described.

The blind can be secured in any partially open position by the addition of any simple contrivance, such as a pin passing through a hole in the inne-r lever` arm, into one of a series of holes. in an are upon the window sill, or in any other convenient manner, but this is not shown in the accompanying drawing.

My apparatus is simple and inexpensive, and may be readily applied to the common form of outside blinds and shutters now in use.

I am aware that blinds and shutters have been opened and closed from the inside, by various complicated. contrivances, but this I do not claim broadly.

What I claim as my invention and desire t-o secure by Letters Patent of the United States isf The combination of the bent levers (Z, with the bars g, when they are constructed, arranged and operated in the manner herein described, and used and for the purpose specified.

In testimony whereof I have signed my name to this specification before two subscribing witnesses. Y

JOI-IN E. OLOKEY. Witnesses:

CHAs. EVERETT, LEWIS E. NEWTON.

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