US1028995A - Spring-mounting for curtain and shade rollers. - Google Patents

Description

H. CZABOR.

SPRING MOUNTING FOR GURTAIN AND SHADE ROLLERS.

APPLICATION FILED OCT. 9, 1911.

' Patented June 11, 1912.

Fig. 1

Fig.

5.241.1111 W Arms;

COLUMBIA PLANOGRAP'H CO-IWASHINOTON. D c

HENRY CZABOR, 0F CLEVELAND, OHIO.

SPRIN G-MOUN TING FOB CURTAI N AND SHADE ROLLERS.

Specification of Letters Patent.

Patented June'u, 1912.

Application filed October 9, 1911. Serial No. 653,557.

Tooll whom it may concern:

Be it known that L'HENRY OZABOR, cit-izen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Spring-Mountings for Curtain and Shade Rollers, of which the following is a specification.

This invention has reference to a spring mounting for curtain and shade rollers, and the invention consists in a suit-able housing or casing adapted to be fixed permanently in a window frame or other place and a. spring controlled mechanism contained therein and adapted to mount one end of the roller thereon, the mechanical effect being the equivalent substantially of the usual spring roller fixtures for window shade rollers. This primary and material difference does however exist, that the springs I and fixtures in common use go with and are attached to the rollers, whereas in this invention the fixture or mounting is upon the window or other frame or support and remains there as a separate and independent article, and curtain rollers are adapted to make working connection therewith and have no spring equipment of their own.

In the accompanying drawings, Figure l is a side elevation of a shade or curtain broken across the middle and mostly wound upon a roller and a vertical section of the mounting and of the spring therein with edge views of other parts. Fig. 2 is an inside elevation of the mounting, and Fig. 3 is a vertical cross section thereof on a line corresponding substantially to 33, Fig. 1, and showing a part of the gear broken away and the spring beyond. Fig. 4 is a side elevation of the ratchet wheel and the pawl, and Fig. 5 is an edge view of said wheel and the pinion and the arbor for the device, which are preferably cast in one piece. Fig. 6 shows fragments of the plates from which the casing or housing is con-' structed. Fig. 7 is an end view of the roller adapted to connect operatively with said arbor.

Referring to the said casing or housing containing the operating mechanism, the same is preferably made with a central or body part 2 of light sheet metal bent to shape as shown and having ears 3 at its bottom to fasten the same in using position and lugs 4. here and there at its edges adapted to lie in square notches 5 in the side plates (3 and to overlap and hold the said sides in place on said body 2. The said side plates overlap the edges of body 2 at their edges and are locked in place both as against edgewise movement and release latera'lly by means of said notches and lugs. This also practically seals the inside of the casing and makes it dust tight except that the bottom of the casing is open until seated for use. The mechanism within said casing consists of a convolute spring 8 more or less like a clock spring, fixed at one end by aslot therein on an inwardly struck projection 8 on the top of casing 2 and at the other end attached to the shaft 6, around which it is wound for tension. The said shaft has its bearing in the sides of the casing'2 and carries a relatively large gear wheel 14L which meshes with pinion 15 on the arbor a. The said arbor has its inner bearing in a cross-piece or plate 12 fixed at its ends in the casing and carries the approximately disk shaped ratchet wheel 18 which is adapted to be engaged by the pawl 20. The said wheel has straight parallel edges 0 oppositely and concentric edges (Z oppositely between said straight edges, and a tooth 72. at the middle of each straight edge is adapted to be engaged by a notch 11 in the pawl, the said notch and pawl being constructed to release when the usual quick down pull on the curtain is made and when the operation becomes the same as with spring curtain fixtures generally.

It will be observed that the arbor a extends through the inncr wall of the casing and has its extremity flattened in this instance to enter a correspondingly shaped bore or hole 21 in the end of the roller 22, whereby operating connection is made between said parts. Any equivalent interlocking construction between the arbor and the roller may be used. It follows if the curtain is run quickly in either direction that the segmental edges (Z of the ratchet wheel will keep the pawl up or back from engaging teeth h and prevent engagement the said teeth being formed within the limits of the circular edge cl for this specific purpose, but when the movement of the shade is slowed the pawl can drop into locking position on one of the teeth It and the our tain will be held. The said teeth 77. have one corner rounded so that when a downward pull is made the pawl willbe disengaged and then a reverse rotation will allow the curtain to ascend. A cap 24 is fixed on the end of the roll and has a flat sided slot cor responding to the bore in the roll and the shape of the entering portion of arbor a. At its opposite end the said roller has a spindle 25 bearing in an open slotted bracket 26 of complementary shape to body 2, and all the parts necessarily are small and correspond in this respect, approximately to the size ofthe Window shade devices in common use.

Referring particularly to the lugs at it will be seen that they have slight shoulders or offsets at their base the depth of the side plates across their edges, and that the said lugs are bent fiat down upon said sides from said shoulders, as indicated at Fig. 6.

In Fig. 2, I show a curved lip or extension 27 fastened to body 2 wherewith a curta-in pole may be additionally supported.

What I claim is:

A device for operatively mounting shades and the like on windows having a suit-able mounting and operating mechanism comprising an arbor provided with a shank adapted to engage a curtain or shade roller therewith, a Wheel fixed on said arbor having opposite flat portions on its periphery provided with a tooth at its middle rounded on its back and segmental portions between the said flat portions, said teeth being retired within the periphery of said wheel, and means adapted to engage one of said teeth at a time and lock the said wheel against rotation, whereby a rapid rotation of said wheel will cause the pawl to'avoid said teeth and a slow rotation will afford engagement therewith.

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

HENRY CZABOR; Witnesses:

F. O. MUssUN, E. M. FISHER.

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

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