US1315705A

US1315705A - Gttstaf a

Info

Publication number: US1315705A
Authority: US
Publication date: 1919-09-09
Anticipated expiration: 1936-09-09

Description

G. A. CARLSON.

CURTAIN R00.

APPLICATION FILED OCT. 2B, 1913.

UNITED sTATEs PATENT oEEroE.

GUSTAF A. CARLSON, 0F CHICAGO, ILLINOIS, ASVSIGNOB. T0 THE BOYE, EEDLE COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION GF ILLINOIS.

' CURTAIN-non.

To (Ml wlw/:L it may concern.'

Be it known that GU'sTar A. CARLSON, a citizen of Sweden, who has taken out irst papers for citizenship in the United States, residing at Chicago, in the Icounty of Cook and State of Illinois, has invented a new and useful Improvement in Curtain-Rods, oi which the following is a specification.

This invention relates particularly to Hexible curtain-rods,V or curtain-rods provided with resilient flexible portions, such as are commonly employed for saslrcurtains.

Curtain-rods of the type here referred to comprise close-wound spring wire coils; and the primary object of the invention is to provide an improved connection between the close-wound spiral and a bracket which i is adapted to be mounted on the windown Jr'rain'e, or sash, as desired.

The invention is illustrated in its preferred embodiment in the accompanying drawing, in which- Figure l represents a broken plan View, illustrating the manner in which the curtaina'od is mounted on a Window-frame, or sash; Fig. 2, a broken elevational-view of the same; Fig. 3, an inner elevational view of the bracket employed in the construction shown in Figs. l and '2; Fig. 4, a frag mentary view of the curtainrod and the ygripper element employed in connection therewith; Fig. 5, a sectional view of the parts illustra-ted in Fig. Il; Fig. 6, a broken elevational view showing a sash, or frame, equipped with a bracket of modified form; and Fig. 7 ,ape'rspective view of the bracket shown in Fig. (i.

ln the construction illustrated, A represents a windowframe, or sash; and B, the improved curtain-rod applied thereto.

The device B comprises a close-wound wire-coil l; a pair oi brackets 2 adapted to be mounted on the frame, or sash; and a pair ot grippers joining the extremities of the coil l to the brackets The brackets 2 may be ot' any approved form. As shown, each bracket comprises a base-portion 2 adapted to 'be secured to the frame, or sash, A, as by means of screws; and an arm 2 which is curved and provided with a loop 2, which is formed by re-curving the endportion of the arm back and under the body-portion, the extremity being indicated at 2d.v

The front wall of the loop 2 is provided Specification of Letters Patent.

Patented Sept. 9, 1919.

with an enlarged opening fl which communicates with a reduced opening, or erforation, 4, in the end of the loop, tius forming What is, in effect, a T-slot for the reception of the gripper member 3.

The gripper member 3 is in the nature of a pair of spring jaws 3a, which are connected by a curved resilient web 3b. llhe gripper device may be formed from resilient sheetinetal, curved to form the ring 3l and the arms of the jaws. d The arms of the jaws are curved to afford substantially semi-cylindrical portions which embrace the end of the coil l; and the extremities of the jaws are provided with inturned flanges 3C which conform to the spiral of the coil l, so that the gripper member 3 may be turned upon the spiral, as a nut is turned upon a screw. The semi-cylindrical portions of the gripper diverge somewhat in forming a junction with the ringportion 3", as indicmted at 3d. Thus, the ring-portion of the gripper is larger than the diameter' of the concavo-convex gripper arms.y

Assuming the flexible rod l to be equipped at each end with one of the grippers 3, the rod may be connected with the brack ets by introducing the enlarged portion ot the gripper through the enlzu'ged opening al, and seating the concavo-convex arms of 85. the gripper. in' the rounded vsocket Il". Usually, the 'rod is made a little shorter than the space between the brackets, so that the rod will be placed somewhat under tension. The effect that the coil tends to 90 draw the grippers through the sockets l", and the Walls of the socket, engaging the tapering portions 3d ot' the gripper arms, torce the jaws more securely into engage ment with the convolutions of the coil.

lt is not essential to the invention that the rod l should be wholly constructed of coiled wire. Usually piano steel wire is employed in making a spiral coil of this character, and it may be desirable to con- 100 struct the rod with wire coils at its end p0rtions only, as shown in my co-pending application No. 259,965, tiled of even date herewith.

ln Figs. 6 and?, tliere` is illustrated a 105 bracket 5, which is adapted to be applied either to the front face of. a frame A1, or tov the inner edges of the side members of the frame, as illustrated in Fign. rthis bracket comprises a base 5* adapted to be secured 11er to thel frame by means of screws; a Hange, or web 5", extending at right-angles to the base; and a iange 5 extending parallel with the base and disposed over or above it, so` that the bracket is in eiect a U-shaped bracket. The. flange 5? is provided with an open socket 6, which communicates, through a slot 6, with a, socket 6b in the web 5*. Each of the sockets 6 and 61 is of the proper size to lengage the concave-convex arms ot' the gripper device 3, and to hold the gripper device in the same manner as does the socket 4f of the bracket Q. Nhen the bracket 5 .is applied to the sash, or frame, in the manner shown in the upperY` portion of Fig. 6, the end-portion of the flexible rod may be passed through the slot G and the gripper enter in the socket 6"; and when the bracket 5 is Vapplied in themanner shown in the lower portion of Fig. 6, the grippers 3 may be introducedl into the sockets (i ot' the flanges 5; the sockets G, in this case, serving to ,hold the grippers.

Freinv the description given, it will rbe understood'that the improved device comprises, in combination with' a iexible rodsection, aV gripper elementand a supporting bracket which has a socket for the gripper element, which tends to hold the gripper closed when the rod is under tension. The

construction described is simple and incre pensive, and enables the curtain-rod to be applied to and removed from the brackets with the greatest facility.

It will be noted from Fig. i that the concavo-convex arms of thegripper which enibrace the end-portion of the coil, cover, when considered together, considerably more than one-half of the circumference of the coil, and the sloping portions 3d of the ring-portion oi the gripper likewise cover more than a half portion of the circumference of the coil. The purpose is to insure proper con tact between the slopingl portions of the gripper'and the walls of the socket, so that proper engagement will be effected between the gripper and the socket, regardless oi angular rotation of the'gn-'ipper member within the socket. This feature makes it nnneccssary to pay anyl attention to the matter of the angular rotation of the gripper within the socket, because ot. the Slot which coinmunicates with the socket, inasmuch as the proper Wedging action will be secured in the socket regardless of the plane occupied by the ring 3* of the gripper with relation to the slot leading to the socket which engages the gripper.

The foregoingA detailed description has is attached to a frame.

halagos been given for clearncss of understanding only, and no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the prior art.

What I regard as new, and desire to secure by Letters Yatent, is:

l. in means of the character set forth, the combination oi" a 'bracket provided with a socket, a coil-spring, and a gripper' engaging Vsaid socket and having jaws engaging the coil-spring, the enga-gement between said socket and gripper being` such as t0. tend to hold the jaws of the gripper in closed position.

:2. ln means of the character set forth, the combination of a coil-spring, a gripper having jaws engaging said spring and having an enlarged web-portion, and a bracket having a socket embracing the web-portion of said gripper andtending to hold the jaws in closed position.

3. ln means of the character set forth, the combination oi a coil-spring, a gripper comprising jaws and an enlarged resilient ring connecting said jaws, and a bracket provided with a socket adapted to embrace said jaws and engage the ring-poition oi the gripper.

4. 1n means of the character set forth, the combination of a coil-spring, a gripper comprising pair of jaws and a resilient ringconnect-ing said jaws, Vand a bracket provided with a socket adapted to permit said jaws to extend therethrough, said bracket having an opening leading from said socket, which enables the gripper to be introduced into the socket while the bracket In means ot'. the character set tort-h, the combination ot a coil-spring, a gripper applied thereto comprising la pair of jaws and a ring connecting said jaws, and a bracket comprising an arm provided with a loop having a socket in its end-portion and having an enlarged opening .conmmnicating with said socket, Ywhereby the ring-portion of the gripper may-be introduced through said enlarged opening.

(5. In means oi the character set forth. a bracket comprising a base flange equipped with means for attaclm'ient to a. frame, a web projecting from said base flange and provided with a socket, and a flange extending from said web parallel with the base liange and provided with a socket, said sockets being connected by a slot.

, GUSTAF A. CARLSON.