US269390A - X x-i i i - Google Patents

Description

UNITED STATES PATENT FFICE.

HENRY M. (JROWELL, OF IRVINGTON, A SSIGNOR OF ONE-HALF TO GEORGE T. CARTER, OF ELIZABETH, NEW JERSEY.

EXTENSIBLE MOSQUITO-BAR FRAME.

SPECIFICATION forming part of Letters Patent No. 269,390, dated December 19, 1882.

Application filed October 9, 1882.

To all whom it may concern:

Be it known that I, HENRY M. GRoWELL, a citizen of the United States, residing at Irvington, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Extensible Mosquito- BarFrames; and I do hereby declare the following to he a full, clear, and exact description of the invention, such as will enable othx0 ers skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to facilitate the adjustment of the frame to windows of difl'erent sizes, to strengthen the frame, to render it more durable, and to reduce the cost of construction.

The invention consists in the peculiar construction, combination, and arrangement of the several parts by means of which the frame is capable of being adjusted both vertically and horizontally, as will be set forth herein- 2 after.

1n the drawings, Figure 1 is a front elevation of my improved device. Fig. 2 is a section (enlarged) taken through line 00, and Fig. 3 illustrates a modified form of the device.

0 in carrying out my invention I construct four hollow and slotted angle irons or boxes, b, which form the four corners of the frame, of sheet metal, in which are adjusted strips or bars of wood a. a, arranged to operate in con- 5 nection with said irons as followsto wit, the strips a a are placed in pairs within the boxes, as shown. in each pair-one of the strips, a, is firmly secured by screws, rivets, or otherwise to one of the angle-irons atone end and allowed to slide in the socket ofthe opposite iron,while the other strip, a, is secured in the last said iron and slides in the first. By this construction and arrangement the size of the frame may be increased or diminished in both verti- 5 cal and horizontal directions by simply pulling the frame apart or pressing it together, as

(No model.)

the strips of wood slidefreely in the operation,

as will be readily understood. Ample room is afforded by means of the slot to fasten the netting or wire-cloth to the wood, which, being o done, serves to hold the parts of the frame in fixed relation to one another after said frame has been adjusted to a given size.

If it be desired to reduce the size of the frame, the netting must be loosened, the parts pressed together, and the netting cut off to suit.

Brackets or braces 0' may be employed to give added strength to the frame. The slotg in the angle-irons may be in the side ofthe iron, as shown in Fig. 2, or within the inner face thereof, as shown in Fig. 3. The netting may be tacked directly to the frame, or acleat, e, be employed, as shown in Fig. 3, the latter method being preferable, as the cleat fitting in the 6 slot gives a superior finish to the frame, as well as giving greater security to the said netting and holding the part into a more rigid or fixed relation.

Having thus described my invention, whatl claim as new, and desire to have secured by Letters Patent, is

1. The combination, with the hollow angleirons, of the bars a a, arranged therein, substantially as and for the purposes set forth and shown.

2. As an improved article of manufacture, an adjustable mosquito-bar frame consisting of the four hollow and slotted angle-plates I) and the strips of wood arranged therein in 89 pairs, one of each pair being secured to the outer portion of each side and the other to the inner portion, substantially as shown and described.

In testimony thatl claim the toregoingI have hereunto set my hand this 25th day of September, 1882.

HENRY M. OROWELL.

Witnesses:

OLIVER DRAKE, GEORGE T. CARTER.

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