US406325A

US406325A - Frederick winant

Info

Publication number: US406325A
Authority: US
Publication date: 1889-07-02
Anticipated expiration: 1906-07-02

Description

2W2 9km v i a (No Model.)

P. WIN-ANT.

BLIND STOP. No. 406,325. Patented July 2,1889.

witnesses fnvenlm UNITED STATES PATENT OFFICE.

FREDERICK \VINANT, OF NEIV YORK, N. Y.

BLIND-STOP.

SPECIFICATION forming part of Letters Patent No. 406,325, dated July 2, 1889. Application filed February 6, 1889. Serial No. 298,806. (No model.)

T0 at whom it may concern.

Beitknown that I, FREDERICK WINANT, of the city of New York, in the State of New York, have invented certain new and useful Improvements in WVindow-Shutter Attachments; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part of this specification.

My invention consists in a device which is to be inserted on the trunnion of one of the slats of a window-shutter in cases where the slats turn too loosely in their trunnions and will not remain closed.

Several devices have heretofore been tried, but have not gone into use because of their complicated construction, or of their turning with the slats when in use, and thus marring the side frame of the shutter, and some of them would fall off the trunnion after being a short time in use.

My device is constructed so that it will not drop off of the trunnion and cannot turn with the movement of the slats.

In the drawings, Figure 1 represents a window-shutter having one of my improved devices attached to the trunnion of one of the slats. Fig. 2 is a side view of my improved device detached from the windowshut-ter. Fig. 3 is a view of the device, and Fig. 4 is an end view.

The device is made out of a disk of brass or other suitable metal, being struck up, as shown in the drawings, in its exterior 0011- tour, somewhat like ahorseshoe, with its ends a a approaching each other, as shown in Figs. 1 and 3 of the drawings. The opening at b is made of the same size as the trunnion of the slat. The ends a a are bent one in advance of the other, as shown at c c, Fig. 4, so as to permit of the ends a a, being sprung onto the trunnion. It is evident from this description that the device will not fall off of the trunnion when once inserted thereon.

Now in order to better prevent the device from turning when the slats are moved up and down, I place one or more prongs or projections d (1, (preferably two,) one upon each side of the device. These prongs may be formed on the device at time of cutting out the blank from a sheet of metal. These prongs are not, however, essential, becausein shaping up the cut-out blank I prefer to give it a concavo-convex shape, as seen at 6, Fig.

2. This will cause the device to have more spring or elasticity in it than if it were shaped up as in the form of the shell of a button.

In Fig. 1 the device is seen as it is attached to the trunnion of one of the slats and in operation. It is apparent that in the movement of the slat, to the trunnion of which it is hung, the device cannot by any possibility rotate, as the prongs d d are embedded in the side post f of the shutter. Neither will the device fall off of the trunnion g of the slat in case the prongs d cl are omitted or do not, if used, embed themselves in the wood, because the narrow space between the inner ends a a, being less than,the diameter of the trunnion, will serve to still hold the device onto the trunnion. These ends aa are placed in the position shown in Fig. 4 at c cthat is, bentin opposite directionin order to get the ends to pass over the trunnion. As soon as this is accomplished, the ends then'are bent straight or in line with each other. The concavo-convex form of the device, as shown ate, will give elasticity to the body of the device, which will cause it to take up the space between the end of the slat and the side post f of the shutter or blind, thus not permitting of any clearance between the end of such slat or the side post and the interposed device, and always giving the necessary friction on the end of the slat to retain in any desired position the whole series of slats of the shutter.

I claim A struck-up sheet-metal disk of concavoconvex shape 0, having an opening I), with the ends or points a a approaching each other,

for the purpose of retaining the disk on the trunnion of the slat, substantially as described.

FREDERICK WVINANT.

Witnesses:

A. M TODD, J. O. WARD.