US2230155A - Curtain rod threading device - Google Patents

Description

Filed April l9 1938 l l vu c vvx to@ LwrZesD.Bro si? Patented Jan. 28, 1941 PATENT OFFICE CURTAIN ROD THREADIN G DEVICE Charles D. Brobst, Aurora, Ill., assigner to Russell W. Allen and Loran Tower, both of Reading,

Mass.

Application April 19, 1938, Serial No. 202,958

1 Claim.

The present invention relates to curtain rod threading devices such as are used to facilitate threading a curtain rod through the hem of a curtain or like hanging and the invention aims to 5 improve generally existing devices for this purpose.

A preferred embodiment of the invention is illustrated in the accompanying drawing wherein Fig. 1 is a face view of my improved threading l device ready to be inserted in one end of a curtain rod;

Fig. 2 is a similar view illustrating the threading device in engagement with the. curtain rod, a portion of the latter being shown in section; and

l Fig. 3 is a sectional view through the curtain rod on the line 3-3 of Fig. 2, the threading device being shown in edge elevation.

According to the invention, my improved threading device comprises athreading tip or head I0 of suitable material and a spring Wire closed retaining loop II having its free ends embedded within or otherwise suitably secured to the head I0. The retaining loop II is adapted to be inserted in one end of a ilat curtain rod I2 to frictionally engage the walls thereof so as to maintain the head I0 securely at the forward or entering end of the rod I2.

The threading tip or head I0 may be formed of any suitable material, as for example wood, metal or a molded plastic composition, and preferably is of a width and thickness slightly in excess of the width and thickness of the curtain rod so as to maintain all portions of the curtain hem open and spaced from the entering edges of the curtain rod. The forward end of the tip or head I0 may be tapered inwardly, vertically and horizontally as at I3 to present a smooth blade-like entering edge I4, and the rear end may be similarly tapered as at I5 to enter the channelled end of a fiat curtain rod as shown in Fig. 3.

The retaining loop I I is advantageously formed of a single piece of spring wire, the ends of which are embedded in or otherwise secured as at I6 to the head I0, providing a closed pointed end I'I and elongated yieldable sides I8. The loop is so constructed that in its normal condition (see Fig.

1) the spacing between the sides I8 is greater than the width of the curtain rod, the sides tapering toward the more pointed closed end I-l. Thus, when the loop is inserted in the curtain rod, the sides I8 are compressed and frictionally 5 engage the inner walls of the channeled rod I2 throughout substantial lengths, the tension of the spring arms I8, being substantially at right angles to the inner wall of the curtain rod, aiding in preventing separation of the head I0 from the ad- .m

`jacent end of the curtain rod I2.

It will be apparent that the rear end of the tip or head Il) need not be tapered as at I5 but may be formed with a dat end engaging the end of the curtain rod I2, as the particular spring l5 loop II engages the walls of the rod I2 in such a manner as to hold the head against the end of the rod.

In use the wireloop portion of the threading device may be readily inserted within the chan- 20 nel of a curtain rod, the side arms I8` automatically bearing against the inner wall of the rod to hold the device securely in place. The assembled rod and device may then be inserted through the hem of the curtain, the enlarged head I0 smooth- 25 ly guiding all portions of the hem outwardly so that it will not be snagged by any rough edge at the entering end of the curtain rod.

Having described the invention, what I claim as new is: 30

A curtain rod threading device comprising an elongated elliptical wire loop having a closed end pointed to readily enter the channel of a curtain rod, the side arms of said loop being normally spaced apart a distance greater than the width of 35 said channel and being compressible inwardly upon insertion in the channel to frictionally engage the inner walls of the curtain rod throughout a substantial length, and a threading tip secured to the free ends of the loop and retained 40 thereby against the end of the rod, the side arms of said loop engaging the channel under tension directed substantially at right angles to the wall of the channel and throughout elongated areas substantially inward and spaced from said tip. 45

CHARLES D. BROBST.

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