US445026A - Window-screen frame - Google Patents

Description

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.IUDSON B. PHILLIPS, OF FENTON, MICHIGAN.

WINDOW-SCREEN FRAME.

SPECIFICATION forming part of Letters )Patent No. 445,026, dated January 20, 1891.

Application filed October 6, 1890.

To @ZZ wwm it may concern.'

Be it known that I, JUDsoN B. PHILLIPS, a citizen of the United States, residing at Fenton, in the county of Genesee and State of Michigan, have invented certain new and useful Improvements in Vindow-Screen Frames, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in frames especially adapted for window-screens; and the object of my invention is, to construct the frame so that it can be readily manufactured and shipped in a knockdown condition, which dispenses with the use 0f any tool for putting it together, and which at the same time may be readily altered to any desired size within the length of the bars composing it and without requiring any skill or any other tool than a common saw.

To this end my invention consists, principally, in the construction of the bars composing the frame, all as more fully hereinafter described.

In the drawings which accompany this speciiication, Figure 1 is a perspective View of my improved frame as preferably constructed for use as a window-screen frame. Fig. 2 is an elevation of my improved frame with one corner thereof shown in vertical central section in the plane of the frame. Fig. J is a cross-section on the line x 0c of Fig. 2. Fig. 4 is a perspective view of one of the bars forming the frame.

A are the bars composing the frame, each bar being provided with square ends and with a tenon B, preferably formed integral with the bar, on one side thereof. This tenon extends the whole length of the bar, except at one end of the bar, where the bar extends beyond the tenon a distance preferably equal to the width of the whole bar. In manufacturing the bar this is preferably accomplished by forming the tenon the whole length of the bar and then cutting away the specified portion of the tenon. In cross-section this tenon is preferably made of dovetail or T-head shape, as shown.

C are corner-pieces adapted to engage with the tenons of the bars by means of suitable Serial No. 367,259. (No model.)

mortiscs formed in the right-angled sides of the cornerpieces. Preferably I construct these corn er-pieces of triangular-shaped pieces of wood having a thickness equal to the thickness of the bars, and, if desired, of more or less ornamental form.

My frame is constructed of four of the bars and of four of the corner-pieces described in the manner shown in the drawings, in which each bar is shown with one end abutting against the side of one of the adjoining bars, while the other end, on which the tenon is partly out away, is shown to overlap the end of the other adjoining bar, all the bars being arranged in like manner and united together by means of the corner-pieces, which engage with the tenons of two adjoining bars. The manner of accomplishing this is obviously simple and need not be described. W'hen the bars are so joined, it will be seen that while each bar at one end overlaps the end of one of the adjoining bars its tenon overlaps the end of the tenon ot' the other adjoining bar. The result of this arrangement is that each bar is thereby held against longitudinal displacement in either direction, and also against displacement at either end in the direction of the adjoining bars. Thus if a fabric cut to iit the opening of the frame between the bars and corner-pieces is secured therein by securing the edges of the fabric to the tenons the whole frame becomes rigid, and if a fabric or material of greater rigidity than the ordinary wire screen is desired to be secured in the frame the corner-pieces may be even omitted, if desired.

For window-screen frames I preferably pi'ovide two of the bars with tenons D upon their outer faces, whereby the frame may be secured in vertical guides on the window-frame in the well-known manner for permitting the screens to be adjusted up or down in the window.

With proper workmanship a frame of my construction is so rigidly held together by the corner-pieces that even without the help of the fabric secured Within the frame it will maintain its form against any accidental displacement, so that the use of nails or screws is entirely superfiuous, thus permitting the parts of the frame to be readily taken apart IOO again, and, if desired, to be altered in size. In Order to do a minimum of Workin altering the size 'of the frame, the cutting off or shortening of the bars is accomplished by sawing oft the required portion on that end of the bar on which the tenon extends to the end ot' the bar, thus saving the work of readj Listing the other end of the bar, which is maintained the same for any desired size of frame.

To determine the proper length of the bars to obtain a frame of given size is obviously not a difficult matter and need not be eX- plained.

The great advantage of my frame is that it may be manufactured and shipped in a knockdown condition, and when accompanied with simple instructions may be put together by any one endowed with common intelligence and without requiring any other tools than a handsaw for sawing the bars the proper length.

I am aware that frames have been constructed heretofore of four bars overlapping each other at the corners in like manner as shown in my frame; but in all such constructions the bars were never united without the use oit' screws or nails and without the help of the fabric intended to be secured within the frame.

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

l. A frame composedof four like bars provided with tenons upon their inner sides and corner-pieces engaging the tenons of two adjoining bars, each bar extending at one end beyond its tenon and overlapping with said end the end of one of its adjoining bars in like manner in all the bars composing the frame, substantially as described.

2. A frame composed of four like bars provided With tenons upon their inner sides and corner-pieces lengaging the tenons of two adjoining bars, each bar extending at one end beyond its tenon to a distance equal to the width of the bar and overlapping with said end the end of one of its adjoining bars in like manner in all the bars composing' the frame, substantially as described.

3. A knockdown frame comprisingr four like bars, each formed on one side with a tenon cut away near one end of the bar equal to the widthof the bar, whereby said bars may be arranged to form a frame in which each bar overlaps the end of one adjoining bar and its tenon overlaps the tenon of the other adjoining bar in like manner' in all the bars, subv stantially as described.

4. A knockdown. frame com-posed of four like bars, eachv formed on its inner side witha T`-l1ead tenon cutaway near one end of the bar and of four triangular corner-pieces having two rectangular sides providedqwith niortises adapted to engage the tenons of the bars, said bars being adapted to be arranged into a frame in which each bar overlaps the end of .IUDSON B. PHILLIPS.

lVitnesses: H. B. LATOURETTE,

WINFIELD B. PHILLIPS.

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