US831137A - Shade-roller. - Google Patents

Description

PATENTED SEPT. 18, 1906. l R. J. BBRTHOUD.

SHAD'E ROLLER.

APPLICATION FILED JULY 5, 190e.

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WITNESSES. y@ QW@ TH: Nonni: rzrxns 1:0., wAnnNaraN. n. c.

RAY J. BERTHOUD, OF SWANTON, OHIO.

SHADE-ROLLER.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed July 5,1906 Serial No. 324,734.

T0 @ZZ whom it Netty concern:

Be it known that I, RAY J. BERTHOUD, a citizen of the Unitedl States, residing at Swanton, in the county of Fulton and State of Ohio, have invented certain new and useful Improvements in Shade-Rollers; and I do 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, and to the figures of reference marked thereon, which form a part of this specification.

In automatic shade-rollers as usually constructed a familiar difficulty is that the pivoted pawl which moves with the revolving roller and which is designed to engage a tooth or notch on a stationary spindle frequently fails to operate owing to the delicacy of the pivotal support of the pawl. A thread or bit of grit will frequently prevent the pawl from working properly, necessitating the taking down of the fixture to clean the bearings of the pawl.

My invention is designed to overcome the difficulty here indicated, and more particularly to furnish a detent for a shade-roller which shall entirely dispense with a pivot.

A further obj ect of my invention is to furnish a construction which shall be exceedingly cheap and simple and which shall dispense with a considerable number of the parts heretofore employed in structures of this character.

I attain these objects by means of the devices and arrangement of parts hereinafter described, and shown and illustrated in the accompanying drawings, in which- Figure 1 is an end elevation of my device; and Fig. 2, azside elevation ofthe same, partly in section, taken on line :t Fig. 1.

In the drawings like parts are indicated by corresponding numerals.

In the drawings, 1 is a hollow shade-roller in the bore of which is disposed a rod 2, surrounded by a coiled spring 3, one end of which is engaged with the roller, the other end being engaged with the rod in the usual manner. The rod terminates in metal spindle 4, which projects beyond the end of the roller and which is flattened, as at 5, to engage a notch in a bracket in the usual manner, which is well understood and which need not be here further illustrated or explained. It will be understood that the lcentral rod and spindle stand fast, while the roller revolves with the winding and unwinding of the shade or curtain.

6 is a ferrule stamped, pressed, Yor spun from thin sheet metal. The disk-like end of the ferrule is countersunk and at its center has a iianged opening 7 the inwardly-projecting ange 8 forming a recessed bearing for an enlargedy disk-like portion 9 upon the spindle 4. From the circular disk-like part of the ferrule at opposite sides of the central opening are struck up a pair of straps or bars 10 10, which are integral with the ferrule at their ends, but otherwise are separated from the ferrule. Between their ends the parts 10 10 stand out from the end of the ferrule in a plane parallel therewith. In the space between the outer face of the disk-like part of the ferrule and the struck-up portions 10 are loosely held a pair of thin metal disks 11. These disks iit loosely in lthese spaces and are adapted to move radially toward the circumference of the ferrule when the roller is rapidly revolved.

12 12 are stops struck up from the disklike part of the ferrule and which limit the outward radial movement of the disks 11. In opposite sides of the enlarged portion 9 of the spindle 5 are notches or indentations 13, segmental in outline and lying in the same plane with and adapted to receive the edges of the disks 11. The indentations 13 are so disposed that when the roller is by the winding of its shade or curtain turned, as indicated by the lower arrow in Fig. 1, the upper disk is lifted out of engagement with the notch or indentation 13 and the roller is permitted to revolve in this direction freely. If the roller be revolved rapidly in the opposite direction, as indicated by the upper arrow in Fig. 1, the disk 11 will by centrifugal force be held outwardly and away from engagement with the notches 13; but should the roller be revolved slowly by the slow raising and winding of the curtain the upper disk will drop into the notch 13 and will be pressed between the side of the notch and the lower end of the guard 10 in such manner that the disk forms a detent which prevents the roller from yielding to the -stress of the coiled spring 3. The roller is now held against movement until the uppermost disk 11 is, lifted away from the end of its recess by v the downward pull of the curtain and the corresponding rotation of the roller.

14 14 are sharp triangular projections IOO struck inwardly from the sheet-metal disklike portion of the ferrule 6. When the fer- Irule is applied to a small roller, these prongs penetrate the end of the wooden roller and serve in lieu of tacks, nails, or screws. When the ferrule is applied to large rollers, the ferrule may be secured in place by means of nails or screws, as at 15.

Having described my invention, what I "claim, and desire to secure by'Letters Patent,

1. In a shadeeroller, a sheet-metal ferrule the disk portion thereof having a central opening therethrough, and guard-strips at opposite sides of the opening, said guard= strips being connected and integral with the disk at their ends.

the disk portion thereof having a central.

opening therethrough and having struck-up guards at opposite sides of the opening, said guards being at their ends connected and integral with the disk, and sharp inwardly-proj ecting prongs formed integral with said disk.

4. In a shade-roller, a ferrule, the disk portion thereof having a central opening therethrough, a flanged depression concentric with said central o enin a spindle projecting through said flange opening, an enlarged portion upon said spindle and having its bearings in said depression, said 'enlarged portion being indented at opposite sides, disks in the same plane with and adapted to engage said i'ndentations, guards formed integral with the ferrule and adapted to hold said disks loosely in place, and stops integral with the ferrule and which limit the outward movement of the disks.

5. In a shade-roller, a ferrule having a central opening through its end, struck-up guards integral with the ferrule and dispos ed at opposite sides of said central opening, disks held loosely. between said guards and the end face of the ferrule, sto g s which limit the radial movement of theldisks, a spindle projecting through said central opening and having at opposite sides indentatlons adapted to engage said disks, the arrangement of the disks and indentations being such that the disks form detents which prevent the slow rotation of the ferrule in but one direction.

y In testimony whereof I afliX my signature in presence of two Witnesses.

RAY J. BERTHOUD.,

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