US1133227A - Curtain-roller. - Google Patents

Description

C. L. BUNDY 61: W. GRANT.

CURTAIN ROLLER. I APPLICATION FILED Amm, 1914.

1J @@Q Patented Mar. 23, 1915.

n srs autr CYPJUS I.. BUNDY, OF EAST ORANGE, AND 'WILLIAM GRANT, OF lASSAIC, NEUV JERSEY.

CURTAIN-ROLLER.

Specicaton of Letters Patent.

Patented Mar. 23, 1915.

Application filed August 3, 1914. Serial No. 854,834.

To all whom t may concern.'

Be it known that we, CYuUs L. BUNDY and lViLLiAM GRANT, citizens of the United States, residing at East Grange, in the county of Essex, and Passaic, in the county of Passaic, New Jersey, respectively, have invented certain new and useful llmprcvements in Curtain-Rollers, of which the following is a specification.

The invention relates to curtain fixtures of that type wherein the spring-actuated roller is mounted in brackets within the window frame and is held at an adjusted height by slices bearing frictionally against the casing within guides provided for the purpose, the roller spring exerting a constant tension to elevate the curtain by rotating the roller.

ln order that the roller spring shall at all times be under sufiicient tension as it lifts the curtain from its lowermost to its uppermost position, it is necessary that the spring shall be under a certain tension even when the curtain is fully wound up and in order to maintain this initial tension of the spring while installing the curtain roller and its brackets it is usual to employ a pawl or other detent whereby to hold the spring, spindle and roller against relative movement until the spear head of the spindle is safely engaged within its bracket and then in some manner to release such detent in order to allow the spring to exert its force on the roller.

IThe primary object of the present invention is the provision of an improved detent arrangement facilitating the release of the same after the mounting of the curtain and adapted for easy reengagement when it is desired for any reason to remove the curtain from the window.

In order that the invention may be readily understood a preferred embodiment of the same is set forth in the accompanying drawing and in the subjoincd detailed description based thereon. As, however, the invention is capable of embodiment in other and various constructional forms the drawing and description are to be taken in an illustrative and not in an unnecessarily limiting sense.

ln the drawing- Figure 1 is an end View of a curtain roller showing the spindle engaged by the detent; Fig. 2 is a fragmentary longitudinal section through the shade roller illustrating the mounting of the detent; and

Fig. 3 is a detail perspective view of the detent disassociated from the roller.

ln the drawings the reference numeral 11 designates the barrel of the roller within which is axially mounted the spindle 12 provided with the usual spear head 13 and connected with the barrel by means of a torsion spring 141. The spindle has its end bearing within the cylindrical flange 15 of an end plate 16 fitted within the end of the roller, this general construction being well known in curtain rollers. Extending laterally from the spindle 12 is a projection 17 which occupies a position within the depression of the end plate 16 with its outer end closely adjacent the shell of the roller.

The roller shell is slitted at 18 and 19 and depressed therebetween in such manner as to form a guiding support for the detent 2O which is slidably mounted immediately below but substantially iiush with the peripheral surface of the roller. rlhis detent is in the form of a metallic strip ,having a terminal lip 21 which projects inwardly from the periphery of the roller in the plane of the projection 17 and is shiftable longitudinally of the roller from such position to a retracted position out of the plane of said projection. The detent is provided with an operating button 22 whereby it may be reciprocated and is also provided adjacent the lip 21 with a stop Q3 adapted to engage the end of the recessed portion 11 of the roller shell so as to limit the extent of inward movement of the detent, the engagement of the button 2Q with the shell at the slit 19 limiting the outward movement of the detent.

When it is desired to install the fixture, the spring 14 is placed under an initial tension by rotating the spindleby means of the spear head and the detent is moved outwardly by means of the button 22 so as to engage the projection 17 with its lip 21. The curtain is then completely wound upon the roller and the latter is placed in position with the ends of the spindle engaging within the brackets of the window. rlhereupon the detent is forced inwardly by the pressure of the finger or a suitable tool upon the lip 21 so as to retract the lip out of engagement with the projection 17. Or, and preferably owing to the fact that the lip in the end of the roller is often diiiicult of access, the spring is placed under its ultimate degree of tension by the rotation of the spindle and is then placed within the brackets in an un Wound condition With the button 22 uncovered and eXposed. By means of the button, the detent is then moved out of the plane of the projection. In either case the roller is left free to rotate under the infiuence ol" the spring 14 acting to Wind the curtain thereon and opposed only by the friction shoes or other restraining devices in ordinary use for this purpose in connection with this type of curtain fixture.

IVe claim:

l. In a curtain roller, a barrel, a spindle adapted for engagement Within supporting` brackets and provided with a lateral projection, a spring connecting the barrel and spindle, and a locking detent slidable longitudinally on the barrel into and out oil the path of the projection and having an operative portion accessible only When the curtain is unwound.

2. In a curtain roller, a barrel, a spindle adapted for engagement Within the supporting brackets and provided with a lateral projection, a torsion spring connecting the barrel and spindle, and a locking detent slidable longitudinally on the barrel substantially flush With the peripheral surface thereof into and out of the path of the projection, said dctent normally covered by the curtain but accessible for actuation when the curtain is unwound.

3. In a curtain roller, a barrel, a spindle adapted for engagement within supporting brackets and provided with a lateral projection, a spring connecting the barrel and spindle, and a detent slidable longitudinally on the barrel into and out of the path oil the projection, said d'etent comprising a metallic strip mounted within guides formed in the shell of the barrel and having an exterior-ly accessible portion whereby the detent may be operated.

4. In a curtain roller, a barrel, a spindle adapted for engagement within the support ing brackets and provided with a lateral projection, a torsion spring connecting the barrel and spindle, and a detent slidable lougitudinally on the barrel substantially flush with the peripheral surface thereof into and out of the path of the projection, said (letent comprising a metallic strip mounted Within guides formed in the shell ot the barrel and having an operating button uormally covered by the curtain but accessible when the curtain is unwound from the barrel.

CYRUS L. BUNDI. WM. GRANT.

Witnesses:

ALFRED ZIMMER, JAMES A. ODoNNnLL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

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