US599664A

US599664A - Adjustable window-screen

Info

Publication number: US599664A
Authority: US
Publication date: 1898-02-22
Anticipated expiration: 1915-02-22

Description

(No Model.)

J. E. SYMES.

ADJUSTABLE WINDOW SCREEN.

Elfi.. WTVESSES- Patented Peb. 22, 1898.

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UNITED STATES PATENT OFFICE JAMES E. SYMES, OF BANCROFT, MICHIGAN.

ADJUSTABLE WINDOW-SCREEN.

SPECIFICATION forming part Of Letters Patent N0. 599,664, dated. February 22, 1898. Application iiled September 1l, 1897. Serial No. 651,274. (No model.)

To @ZZ whom it may concern:

Be it known that I, JAMES E. SYMEs, acitizen of the United States, residing at Bancroft, county of Shiawassee, State of Michigan, have invented a certain new and useful Improvement in Adjustable Window-Screens; vand I 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, reference being had to the accompanying drawings, which form a part of this specication.

My invention has for its object certain new and useful improvements in an adjustable window-screen and it consists of the construction, combination, and arrangement of devices and appliances hereinafter described and claimed, and illustrated in the accompanying drawings, in which- Figure l is a view in perspective illustrating my invention, the wing-frame being shown in opened position. Fig. 2 is a similar view of the screen from the opposite side from that shown in Fig. 1, the wing-frame being partially in closed position; Fig. Sis a view in section on the line 3 3, Fig. l. Fig. 4is a View in section on the liner-l 4, Fig. l. Fig. 5 is a detail view in perspective of one ofthe side bars of the main frame. Fig. 6 is a similar View of one of the side bars of the wingframe, and Fig. 7 is a similar view of one of the end bars of the frame.

The purpose of my invention is to produce a self-supporting adjustable window-screen of simple construction which may be economically manufactured and a frame which may readily be adj usted intovarious locations and positions to fit various sizes of windows and which will afford least restriction of the airspace, all which objects are secured by the construction and combination of parts herewith illustrated and described.

I carry out my invention as follows:

A represents the main frame, constructed with two side bars a. a of similar construction and of two end bars a a of similar construction.

B isa Wing-frame madewith three sides,

constructed with two similar side bars b h and one end bar b'.

The frame A is rectangular in form and is provided with a screen fabric C, preferably mounted thereupon flush with the face of the frame, as shown'in. the drawings.

B is a screen fabric engaged with the wingframe, preferably also flush with the face of the frame. The two side bars b b of the wingframe are mounted upon the corresponding side bars ct a of the main frame in such a manner that the screen fabric of the wingframe will slide over the face of the fabric on the main frame in immediate proximity thereto. The side bars a a of the main frame are cut away on one side thereof, as indicated at a2, leaving the opposite face of the side bar projecting full width to the outer edge, forming a way a3 for the corresponding side bars of the wing-frame. Said side bars of the main frame are also constructed with a longitudinal channel a4, intermediate the front and back surfaces thereof, forming a guidechannel for a corresponding portionor tongue of the adjacent side bar of the wing-frame, whereby the corresponding side bars of the main frame and of the wing-frame have a tongue-and-grooved connection one with the other.' The channel or groove d? is cut down below the cutaway portion a2 of the side bars a ct. The two said bars a, ct of the main frame may be constructed by running the bars through a sticker by a single operation,said two` side bars being alike in construction, as hereinbefore described. After being thus formed by a sticker the extremities of said side bars a ct are to be mortised,as indicated at a5, to receive a corresponding tenon of the adjacent end bar of the main frame. The two end bars of the main frame are of like construction, said bars being constructed with tenons a6 to enter the groove d5 of the side bar, the tenons of said bar adjacent to the wing-frame being cut away to receive the corresponding side bars of the wing-frame.

The end bar b' of the wing-frame is analogous in construction to the. end bars of the main frame, except that the said end bar b j is formed with grooves b2 at its extremities to receive corresponding tenons b3 of the side bars of the wing-frame. The said bars l) l) of the wing-frame are made narrower than the Side bars of the main frame, as shown, and are constructed with a tongue b, entering the groove a4 of the ad j acent side bars of the main frame. Said side bars of the win g-frame ride in the cut-away portion in the corresponding side bars of the main frame, as indicated in the drawings, and their faces carrying the screen fabric are approximately in the same plane, or so nearly so as to permit the two screen fabrics of the main frame and of the wing-frame to slide past one another in close proximity. It will be seen that by the tongueand-grooved connection of the side bar of the wing-frame with the side bars of the main frame the two framesare adj ustably secured one to the other, so as to prevent their lateral disengagement. This is accomplished, essentially, by the tongues of the wing-frame in the corresponding channels of the main frame. It will be obvious also at the same time that the engagement of the side bars of the two frames the one with the other is such as to prevent a vertical disengagement of the one from the other. By this means the two frames are always held in adjustable engagement together, permitting a free reciprocation of the wing-frame without any liability of its disengagement from the main frame.

The adjustable wing-frame is held in an extended position by means of a spring D, which is secured to that bar a of the main frame which is adjacent to the wing-frame in any suitable manner. This spring is preferably formed from spring-wire and is provided with a coil D', close to the end d, which is secured to the said bar a by being driven into it. This wire after being coiled is bent, essentially, at right angles and is passed through the opening a7 in the bar. After the end of the wire has been passed through the openin g a7 it is secured to the bar b of the wing-frame in any suitable manner. As the wing frame is moved back and forth in relation to the main frame the wire plays back and forth through the opening a7, and the wing-frame will be forced outwardly in relation to the main frame until the straight portion (Z2 strikes against the end bar of the main frame. lVhen the wing-frame is forced inwardly, the straight portion d2 is forced away from the end bar of the main frame, and the spring assumes substantially theposition shown in Fig. 2; but as soon as the wing-frame is released the spring forces it outward to its full extent, as shown in Fig. l, and then the straight portion (Z2 of the spring rests against the end bar a. The outer end of the spring-wire d3, passing through the end piece of the main frame,yields when the wing-frame is partially or wholly closed in the are of a circle, as indicated in Fig. 2. By this means the wing-frame may be adjusted outwardly or inwardly toward or from the main frame readily, as may be desired, the force of the spring acting upon said wing-frame tending to force it outward and hold the wingfra1ne firmly against the jamb of the window-frame at any point within the limit of its movement.

Projecting from the end bars of the wingframe and of the main frame are sharpened pins (indicated at E) adapted to enter the jambs of the window-frame and securely retain the same in place in any position where it is desired to locate the screen. This construction of the screen enables it to be used either inside or outside of the sash or above or below the sash, as may be desired. The screen-frames have a plain surface throughout the inner surface of the main and wing frames, so that when placed on either side of the sash the space is effectually closed. The spring D, it will be observed, is located at one side of the longitudinal center of the end bar of the main frame, the outer end portion passing through the end bar of the main frame near its longitudinal center and engaging the longitudinal center of the end bar. of the wing-frame.

The side rails of the wing-frame are, as will be seen, narrower laterally and also narrower vertically than the corresponding rails of the main frame.

It will be observed that the side bars of the main frame are cut away longitudinally 011 their outer edges, as at a2, and that the longitudinal channels a4 project inwardly, while the tongues of the side bars of the win g-frame project inwardly to engage said grooves.

That I claim as my invention is- 1. In an adjustable windowscreen,the combination of a main frame, a movable wingframe adj ustabl y mounted on the main frame, screen fabric engaged with both said frames, a spring connected with the main frame at one side the longitudinal center of the end piece of the main frame adjacent to the wing-frame, said spring formed with an outer arm passed through said end rail of the main frame and connected with the end rail of the wing-frame, substantially as set forth.

2. In an adjustable screen, the main frame carrying a screen fabric and provided with an opening through its inner end for the passage of the spring, a wing-frame carrying a screen fabric and movably mounted upon the main frame,combined with a spring which has one of its ends secured to the end bar of the main frame, and its other end to pass through the opening in the main frame and secured to the outer end of the wing-frame, the spring being constructed and arranged to operate, substantially as described.

3. In an adjustable windowscreen,the combination of a main frame, a movable wing- IOO IOS

IIO

- frame adj ustably mounted on the main frame, said Wing-frame is yieldingly heldin extended screen fabric engaged with both said frames, position, the lateral arm of the spring serving and a spring mounted on the inner edge of as a stop when the Wing-frame is fully eX- the end bar of the main frame adjacent to the tended, substantially as set forth.

5 Wing-frame provided with a1atera11y-eXtend-- In testimony whereof I sign this specica- 15 ed yielding arm, and an outer arm extended tion in the presence of two Witnesses. at a right angle to said lateral arm and passed JAMES E. SYMES. through the adjacent end bar of the main Witnesses: frame, said outer arm of the spring engaged EDWIN P. SHERMAN,

to with the end bar of the Wing-frame, whereby HELEN OHARA.