US974722A - Guard for birds. - Google Patents

Description

L. G. SWANSON.

I GUARD FOR BIRDS. APPLICATION FILED 001'. 27, 1909.

Patented Nov. 1, 1910.

LUDVIG G. SWANSON, 0F SPRINGFIELD, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO HANS W. GUTERMANN, OF SPRINGFIELD, MASSACHUSETTS.

GUARD FOR- BIRDS.

Specification of Letters Patent.

Application filed October 2'7, 1909.

To all whom it may concern.

Be it known that I, LUDVIG G. SWANSON, a citizen of the United States of America, and resident of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Guards ,for Birds, of which the following is a full, clear, and exact description.

This invention relates to guards for birds, the object of the invention being to provide a device which, when secured in position upon any desired portion of a building, such as a window sill or window shutter for instance, will efiectually prevent birds from alighting upon such window sill or shutter.

Devices of the character set forth are not limited to use in the particular places specified for they may also be secured to projecting portions of window or door frames or any other suitable projections upon a build- In devices of this character it is not only desirable to provide a structure which will serve to prevent the alighting of birds, but it is. desirable to accomplish this object through the medium of a structure capable of being very cheaply manufactured and one which may be secured in position with a minimum expenditure of labor andv material.

To accomplish these ends, it is designed to provide a bird guard which may be made of a single strip of sheet metal stamped into proper form to provide both the body of the bird guard and the holding means therefor, at a single operation and at a very low cost.

Further objects and advantages of the invention will be set forth in the detailed description which now follows.

In the accompanying drawing, Figure 1 is a side elevation of the blank from which the bird guard is formed, Fig. 2 is a perspective view showing the bird guard applied to the upper edge of a window shutter, and, Fig. 3 is a side elevation, showing the bird guard applied to a shutter but in a different position.

Like numerals designate corresponding parts in all of the figures of the drawing.

Fig. 1 shows a blank after it has been stamped to serrate it and to produce the various holding lugs hereinafter described, but before said holding lugs have been bent into a plane at right angles to the plane of the body of the guard as illustrated in Fig. 2. The blank is stamped or otherwise formed, preferably in such manner as to produce elongated teeth 5 and a series of shorter teeth 6, these teeth 5 and 6 extending throughout the upper edge of the guard. The lower edge of the guard is incised at 7 and 8 to produce a plurality of holding lugs or tongues 9 and 10. In the preferred form of the device shown in Fig. 2, these lugs or tongues are bent into a plane at right angles to the body portion 11 of the guard and are in this figure illustrated as being pierced by small nails or other fastening devices 11, which enter the upper rail 12 of the shutter 13 and serve to hold the guard securely in place. Openings 14 for the passage of the fastening devices 11 may be formed in the holding lugs or tongues when the guard is stamped out, if desired, or these openings may be omitted and the piercing of these lugs be accomplished by driving the nails through them if the metal of which the guard is to be formed is sufliciently light to permit this to be done.

In the modified form of the device illustrated in Fig. 3, the guard is mounted in a slightly different position from that disclosed in Fig. 2. In Fig. 3, the holding lugs are not bent at right angles to the plane of the body of the guard, but lie in the same plane and the fastening devices 11 enter the front face of the upper rail of the shutter instead of the top face thereof.

The incising of the blank at 7 and 8 in Fig. 1 not only forms the holding lugs or tongues as hereinbefore set forth, but permits the ready bending of the guard to any desired angle with relation to the holding lugs and consequently to any desired angle with relation to the shutter.

From the foregoing description, it will be seen that the present invention provides an eflicient bird guard together with practical and economical means for securing the same in position, but it is to be understood that the invention is not limited to the precise construction set forth but includes within its purview such changes as may be made within the scope of the appended claims.

Having described my invention, what I claim is:

1. A bird guard consisting of a single strip of sheet metal having a serrated upper edge and having incisions which extend first 3. A bird guard comprising a strip of metal having a serrated upper edge and being longitudinally incised for a short distance from each of its ends and having a plurality of upwardly and horizontally extending incisions intermediate its ends.

Signed by me at Springfield, Mass, in presence of two subscribing witnesses.

LUDVIG G. SWANSON. WVitnesses WM. S. BELLows, G. R. DRISCOLL.

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