US918345A - Shutter attachment. - Google Patents

Description

C. MAEGHLER.

SHUTTER ATTACHMENT.

APPLICATION FILED JULY 16. 1908.

918,345. Patented Apr. 13, 1909.

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CARL MAEGHLER. OF NEW YORK, N. Y.

SHUTTER ATTACHMENT.

Specification of Letters Patent.

Application filed July 16, 1908.

Patented April 13, 1909.

Serial No. 443,860.

To all whom it may concern:

Be it known that l, CARL ManonLnn, a citizen ofthe United States, and a resident of the city of New York, Long Island City, borough of Queens, in the county of Queens and State of New York, have invented a new and Improved Shutter Attachment, of which the following is a full, clear, and exact description.

My invention relates to shutter attachments suitable for use upon windows and the like, my more particular purpose being to provide for the leaves of the shutter a comparatively high degree of adjustability, and also to enable the leaves to be held rigidly in position when once adjusted.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a fragmentary front elevation showing an ordinary window shutter with my improved shutter attachment mounted upon it, the leaves of the shutter being now folded and held rigidly in position by the attachment Fig. 2 is a substantially central vertical section through the shutter shown in Fig. 1, and showing how the adjusting rod is secured to the shutter bar and is in turn held in position by the spring fingers of a bracket provided for this purpose, and Fig. 3 is a detail showing in perspective the bracket provided with spring fingers.

A shutter frame is shown at 4 and is provided with a center piece 4. The shutter leaves are shown at 5 and are connected with a shutter bar 6 by aid of staples 7, 8, as indicated in Fig. 2. Mounted upon the lower end of the shutter bar 6 is a bracket 9 pro vided with a portion 10 bent outwardly from the shutter bar and terminating in a disk 11 serving as a bearing. A U-shaped rod 12 of metal is pivotally connected at 12 with this bearing and extends downwardly from the same. rounded end 13 and with a reduced portion 14, made simply by bending the bar closely upon itself. back upon themselves are formed into shoulders so as to confer upon the bar 12 a fair degree of resiliency.

A bracket 15 is secured upon the center piece 4 by aid of screws 16. This bracket is provided with spring fingers 17, 18, the spring finger 18 having a lug 19 extending This U-shaped rod is provided with a At 12 the portions thus bent laterally from it so as to slightly overlap the spring linger 17. The spring fingers are provided with notches 20 for engaging the shoulders 12. 7

Below the shutter bar 6 is another shutter bar 6. If, as sometimes happens, these shutter bars move toward each other, the bracket 9 might get in the way and cause trouble except for the manner in which it is mounted. As the portion 10 extends in a lateral direction from the shutter bar 6, the U-shaped spring rod 12 is out of alinenient with the shutter bars. Hence, the greatest freedom of movement and of adjustment is allowed to the shutter bars.

The operation of my device is as follows: In order to lock the leaves 5 in folded position, as indicated in Fig. 2, the leaves are simply turned on edge, this being done by aid of the shutter bar 6 in the usual manner. The shoulders 12 click into the notches 20 as will be understood from Fig. 2 and the leaves 5 are now unable to move. In order to move them, the operator grasps the portion 14 of the U-shaped bar 12 and draws it directly away from the center bar 4. This disengages the shoulders 12 from the notches 20 and allows the U-shaped spring bar 12 to assume its outermost position. When this takes place the portion 14 is against or adjacent to the lug 19 which, however, still con.- fines it intermediate the spring fingers 17, 18.

While the parts are in this position the i spring bar 12 may be moved up and down within proper limits. The spring fingers 17, 18 press lightly upon the bar 12 for the reason that the oint of contact between the spring bar and tie spring fingers is adjacent to the outer ends of the spring fingers. The pressure at this point is comparatively weak and hence the bar 12 is easily moved up and down. The pressure of the spring fingers is sufficient, however, to leave the spring bar 12 in such condition that it is unlikely to move from any accidental disturbance.

By forcing the spring bar toward or from the center piece l, the spring fingers 17, 18 may be caused to press with any desired degree of tension so that the leaves 5 are held with any desired degree of firmness. As the spring fingers 17, 1S become slightly worn or distorted, so that they tend to hold the spring bar with a loose grip, the proper degree of pressure is supplied to the spring fingers by the operator who simply forces the spring bar a little nearer to the center piece 4* in order to compensate for the lack of sufficient pressure.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

'1; In ashutter attachment, the combination of a bracket to be secured upon a shutter bar, a spring bar connected with said bracket, and a second bracket to be secured upon a center piece or the like, said lastmentioned bracket being provided with spring fingers for engaging said spring bar.

2. The combination of a frame, leaves mounted thereupon and movable relatively thereto, a shutter bar connected with said leaves for actuating the same, a longitudinal member connected with said shutter bar, and a bracket mounted upon said frame and provided with spring fingers disposed upon opposite sides of said longitudinal member and engaging the same for the purpose of holding said leaves in various predetermined positions.

3. As an article of manufacture, a bracket v provided with spring fingers, one being onger than another and overlapping the lat ter for the purpose of holding a movable member intermediate said spring fingers, a shutter bar connected with said movable member, leaves connected with said shutter bar and movable thereby, and a frame supporting said leaves and said bracket.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

CARL MAECHLER.

Witnesses 1 ALEXANDER LEVENE,

BERTRAM L. MARKS.

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