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Publication numberUS97726 A
Publication typeGrant
Publication dateDec 7, 1869
Publication numberUS 97726 A, US 97726A, US-A-97726, US97726 A, US97726A
InventorsJohn I. Tay
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hanging window shades
US 97726 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


No, 97,726. Patented Dec. 7, 1869.

To allwhom it may conceri'z- .provements, reference is-liad to at Figure 2.


Letters. Paten t N 97,72.

, dated December 7, 1869. v

The Schedule referred to in these Letters Patent and making part of the same.

Be, a .known that LJOH'N I. ray, of Oakland,

county of Alameda, State of California, have ,in-

vented Improvements ,in Hanging \Vindow-Shades; and .I {do hereby declare the following description and accompanying drawings aresufiicient to enable any person skilled in the art or science to which it most nearly appertains, to make and use my said invention or. improvements,without further in veution or experiment 7 i {My invention relates .to an improved arrangement of the cords and pulleys,em1 )loyed in hanging windowshades, and is; an improvement upon Letters Patent No. 89,813, which were issued tome on thedth day 'of May, A. D. 1869., a

My improvements consist in an arrangement, where by I accomplish the same object, by niea-nsof a less number of cords, doing away, also, with the lower 'roller, to which the curtaiiris attached. i r

The object otmy former patent was to so arrange the shade that it could be lowered from the top or rolled up from the bottom.

,In this'arraugement the one roller serves to rollthe shade up, while, by a simple'device, the roller itself can be moved up and down, atpleasure.

In order to illustrate with clearness the said imthe accompanying drawings,

A represents a window-frame, and B, the shade.

a slight weight, which is usually a thin strip of wood,

at the lower end, in the usmilmanner of hanging \Vlfl? dow-sliades.

Inoneend oilthe rolleiO a metallic bush is screwed, inside of which a journal, (4, revolves, being held iii place by a put, 7', which prevents it from passing out through the bushing. I

" 'll-s journal extends outward from the end of the roller a short distance, as shown by the dotted lines A rubber, or otherelastic band, I), is first placed upon this journal, close, up. against the end; of the roller, and a metallic washer, Z,'is then slipped over' the-journal, against the band I).

A circular plate, 0, having an upward-proj ectiu g lug, is then slipped over the-journal, next to the washer d, after which -a ratchet'wheel, g, is firmly secured upon the journal, next to'thecircular plate e.

forming a part of this specification, in

A pawl, 21, is pivoted to the lug on the plate 0, and engages with the ratchet, when the roller is turned in one direction, while it allows it to revolve freely in the opposite direction. a

The devicesthus far described serve in elevating and lowering the roller, a cord, D, being attached to the lug on the plate 0, while the opposite end of the same cord is attached to a lug upon a similar plate on the opposite end of the roller, both cords passing over pulleys, and uniting directly over the ratchet end of the roller, after which they are attached to a weighted tassel, E, as described in my fin'mer patent.

By pulling down upon the tassel E, the" pawlis caused to engage with the ratchet, and thus lift the roller, but when the weight of the tassel is relieved, the weight of ,the curtain will causeit to descend.

Upon the journal, and outside of the ratchet, is placed a loose pulley, 7t, which has its counterpart upon the opposite end of the roller, and around which the guide-cords lare given one turn, in order that when the roller is lowered, the friction produced by the cords will give it a rotary motion.

Anelastic band, n, haying washers upon each side, in order to prevent too great friction on the movingpar-ts, isthen placed upon the journal, and the whole is secured in place by a cap or nut, 1).

By tightening the nut or cap p upon the end of thejournal,thefriction on the pulley can be increased,

shonld the pulley-move too freely, while, in order to regulate thetension of the parts between the ratchet and end of the roller, the bushing'must be screwed farther in or out, as occasion requires.

By this arrangement I do away with. a number of the'cords and pulleys employed in-the device covered by my former patent, lessening the cost of hanging the shades, and giving a neater appearance to the window, while the adj nstment of the curtain to any p0sition. either up or down, or both, is secured with equal facility and ease.

\Vhat I claim as my improvement, and desire to secure by Letters Patent, is

The combination of the plate '0, pawl i, rate .es wheel g, loose pulleysk, cords "D and Z, and weighted tassel 19, when arranged to operate as herein setforth.

In witness whereof, I have hereunto and seal.

JOHN I. TAY. [n s.] 1 Witnesses JOHN L. Boone,


set my hand

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3322293 *May 24, 1965May 30, 1967Riviana Foods IncContainer for instant or precooked rice and the like
US6860312 *Sep 27, 2002Mar 1, 2005Ren JudkinsRoll-up shade with cord capture
Cooperative ClassificationE06B9/64