US449579A - Shade-adjuster - Google Patents

Description

(No Model.)

H. DU FRESNE.

SHADE ADJUSTER.

No. 449,579. Patented Mar. 31, 1891.

Fig-41.

15 0 W Inventor,

Witnesses;

onms runs 00., mom-um UNITED STATES PATENT OFFICE,

a fi HARRY DU FRESNE, OF PORTLAND, OREGON.

SHADE-ADJUSTER.

SPECIFICATION forming part of Letters Patent No. 449,579, dated March 31, 1891.

Application filed May 27, 1890. $erial No. 353,342. (No model.)

T0 at whom it may concern:

Be it known that I, HARRY DU FRESNE, a citizen ofjthe Swiss Confederation, residing at Portland, Multnomah county, and State of Oregon, have invented a new and useful Improvement in Shade-Adjusters, of which the following is a specification, reference being had to the accompanying drawings, as a part hereof.

My invention relates to the mechanism em.- ployed for holding springrollers carrying window shades or curtains in any desired position convenient to shade the strong lights without interfering with the free circulation of air. The means heretofore employed for this purpose are impracticable, in my opinion, for the reason that the adjustment thereof is more or less complicated, and this objection I seek to overcome by my invention. The means I employ for this purpose are as shown in the drawings, in Which- Figure 1 is a side elevation of a bracket holding one end of the roller, the dotted line 50 indicating the form in which the other bracket differs from the one seen in the figure. Fig. 2 is an end view of the bracket, also showing a partial horizontal sectional view on the line 3 3 Fig. 3 is a top view, and Fig. 4 shows the adjustment of my invention on a Window.

Similar letters refer to similar parts.

The construction of that portion of the brackets A holding the roller is similar to the ordinary kind used for supporting springrollers. In other respects I prefer to give my brackets the form shown. The brackets A supporting the rollers B are suspended by adj usting-cords c c, fastened in eyes a and se cured by the means hereinafter shown. The two brackets supporting such roller are rigidly fixed to a transverse connecting-rod b passing through perforations provided in such brackets and are secured by set-screws c.

The main feature of my invention consists, however, as will hereinafter appear, in providing my roller-holding brackets with antifriction wheels cl, made of rubber or other suitable material, which will enable them to be adjusted up and down on the windowframe without the aid of guides, which I avoid entirely, and I {therefore prefer to fix my brackets by using a transverse connecting=- rod I) inserted through the perforations in the lugs on said brackets A, the outerlug being threaded and the threaded end of said connecting-rod secured in this, the wheel (Z being placed on such red, as shown, and, if desired, a washer may be placed on both sides thereof. The length of the transverse connecting-rod must, of course,be gaged according to the width of the window and roller. The cords above mentioned by which my roller-holding mechanism is suspended pass oversmall pulleys f f secured to the top of the window-frame near the corners, and both cords are slipped through and secured in the cone end of the upper link of the chain O, and when so arranged by taking hold of the said chain one can raise or lower the shade as desired and secure the same by catching one of the links on a pin h driven in the window-frame, the anti-friction wheels permitting the brackets to glide easily up and down against the window-frame without injuring the finish of the latter, the weight of the roller-supporting brackets and such roller and its curtain or shade being sufficient to hold the same in a vertical position, the win dow being so placed, if necessary, that the curtain is protected against the pressure of too strong a current of air.

I am aware that the rollers of window-shades have heretofore been supported in movable brackets fixed to a transverse connectingrod and suspended by adjusting-cords, and this, therefore, is nota part of my claim; but

\Vhat I do claimis- 1. In an adjustable shade-fixture, the combination of the roller-bracket having lugs in which is secured an anti-friction wheel (I, such brackets being fixed on a transverse connecting-rod and provided with suitable suspending appliances, substantially as and for the purposes described.

2. In an adjustable shade-fixture, the combination of the roller brackets A, having lugs in which is secured an anti -friction wheel d on the transverse connecting-rod 22, passing through perforations in the inner lugs, and its threaded ends being secured in the threaded perforations in the outer lugs, the same being provided with suitable suspending appliances, all as substantially described.

HARRY DU FRESNE.

IVitnesses:

Z. GE'IsLER, A. OBERENDER.

IOO

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