US755052A - Blind-fastener. - Google Patents

Description

No. 755,052.. BATENTBD MAR.'22, 1904'.

H. A. SGHMIDT.. BLIND FASTENER,

APPLICATION FILED JULY 8, 1903.

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UNITED STATES I Patented March 22, 1904.

PATENT OFFICE.

BLlND-FASTENER.

SPECIFICATION forming part of Letters Patent No. 755,052, dated March 22, 1904. Application filed July 8, 1903. Serial No. 164,732. (N0 e -l To all whom it may concern: v

Be it known that I, HENRY A. SCHMIDT, a citizen of the United States, residing at Phoebus, in the county of Elizabeth City, State of Virginia, have invented certain new and useful Improvements in BlindFasteners; 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.

This invention relates to window=blind fasteners; and it has for its object to provide a device of this nature which may be operated to release the blind without raising the window-sash and which will be inclosed within the woodwork of the window-frame, so as to be practically invisible. V

, Another object of the invention is to obviate the necessity of catches or other projections upon the surface of the window-sill, such as might catch in the clothing of one closing the shutters.

Other objects and advantages of the invention will be apparent from the following description.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a view of a window provided with the present blind-fastener. Fig.

.2 is a transverse section of the window-sill,

showing the operating mechanism. Fig. 3 isa top plan view of the sill, showing the projecting plate. Fig. 4 is a top plan view with the projecting plate removed.

Referring now to the drawings, there is shown a window frame 5, comprising the usual top and sides and sill 6, and has slidably arranged therein the customary sashes 7 and 8. Hingedto the outer faces of the sides of the frame are a pair of shutters 3 and 1, which are held normally open by means of springs disposed upon the pintles of their hinges. As shown at 9, the sill contains a transverse recess which extends from a point adjacent its inner edge to a point adjacent its outer. edge, and for a portion of its length its edges are rabbeted to receive a plate 10. The portion of the sill lying inwardly of the sash, which may be termed the stool, covers a portion of this recess and has a vertical perforation 12 connecting therewith. The plate 11 'eX- tends outwardly from the stool and covers the remainder of the recess. In the outer end of the plate 11 there is a perforation 13, which connects with the recess 9 and has its outer 'edge beveled to form a latching-face 14: for the perforation 12. The plunger 20 is provided with the thumb-plate 20 upon its upper end "and is encircled by a perforated plate 21,

which snugly fits it and lies beyond the edges of the stool, to which it is secured. Disposed between the inner end of the lever 17 and the bottom of the recess 9 is a spring 22, which holds the end of the lever normally in raised position. Should the plunger 20 be depressed,

however, and through the medium thereof the lever 17 moved against the action of the spring, the transverse bar 19 would be raised to engage the pivoted hooks 15 and disengage them from latching-face 14. With the holding means thus released the shutters under the tension of the spring-hinges would fly open, and withv the removal of pressure from the plunger .20 the lever 17 will return to its normal position.

As shown in Figs. 3 and4= of the drawings,

the recess 9 and plate 11 may be enlarged at their outer ends to more readily accommodate the slot 13 and the transverse bar 19.

It will thus be seen that a construction is provided which may be used in connection with shutters employing the ordinary: type of fastening-hooks wherein all of the working parts are concealed within the sill, leaving no catch or other projection upon the surface of the sill.

In practice modifications of the specific construction shown may be made, and any suitable materials and proportions may be used IOO a plunger pivoted to the end of the lever at the other side of the pivot from the transverse 5 head and passing upwardly through the sill a spring disposed between the last-named end of the lever and the bottom of the recess to hold the transverse head normally depressed.

In testimony whereof I at'fix my signature in 20 presence of two Witnesses.

HENRY A. SCHMIDT.

Witnesses:

WILLIAM GIBBS, M. \VAssERMAN.

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