US58029A - Improved window-shade fastening - Google Patents

Description

NPPYERS. PHOTD-LTHOGRAPHER WASHINGTON D r UNITED STATES PATENT OEEioE.

ELBRIDGE J. STEELE, OF NEW BRITAIN,OONNEOTIOUT, SSIGNOR TO HIMSELF AND A. E. TAYLOR, OF SAME PLACE.

IMPROVED WINDOW-SHADE FASTENING.

Specification forming part of Letters Patent No. 58,029, dated September 1l, 1866.

To all whom it may concern:

Beit known that I, ELBEIDGE J. STEELE, of New Britain, in the county of Hartford andl State of Connecticut, have invented anew and useful Improvement in Vindow-Shade Fastenings; and I do hereby declare that the following is a full, clear, and exact description thereof, which wlll enable those skilled in the art to make and use the same,reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents a window-shade with the fasteningattached. Fig. 2 is a top view of the bed-plate of the fastening with the le.- ver part removed. Fig. 3 is acentral vertical section of the same. vFig. 4 is an under-side -iview of the'same with the shade-cord con- 5 is a cross-section on'the line nected. Fig. a: Fig. 4.

Similar letters of reference indicate corresponding parts.

This invention relates to an improvement in the fastening1 for a window-shade cord or tape when a single cord or tape is used for operating the roller to raise or lower the shade.

By means of this device for securing the cord the shade is held rmly at any desired height, and maybe raised and lowered very readily without any risk of breaking the cord or of twisting it when iiat cord or tape is used, which are common difficulties with shade-fast enings.

The fastening is made of brass or any snitble metal and of v arious patterns.

The bed-plate a is made with a recess on the under side, running through a part of its length, as shown in Figs. 3, 4, and 5, which may be formed either rectangular or semicircular to fit a flat or round cord, and at the lower end of which recess there is an opening, s, in the bed-plate, for the passage of the cord through it, as shown in Figs. 2 and 3.

A thumb-lever clamp, b l), is pivoted on the upper side of the bed-plate a to projections c c, Figs. 2 and 3.

On the under side of the upper end of the lever b b is attached a spiral spring, d, Fig. 3, the lower end of which rests on the bed-plate a in a little socket or conntersunk hole, as shown in Figs. 2 and 3.

The lower limb of the lever curves down to the bed-plate and beyond the end, so as to be iiush with the under side, and allow the edges on each side of a recess to rest upon the window-easing, as shown in Figs. 3 and 4.

The lower part of the bed-plate a is turned up at the sides, forming flanges c c, to act as guides for the cord g, and to keep the lever b in place, and at the lower side ofthe openin g s the edge of the bed-plate is raised, so as to form a shoulder, f, for a bend in the lower limb ofthe lever to bear against and clamp the cord in a crease or corrugation, to prevent it from slipping easily, as shown in Figs. 2 and 3.

A, Fig. 1, represents a window-shade, hung to the casing B by a single dat cord, g, at'- tached to the fastening above described, and it will be particularly observed, in the rst place, that the cordcannot twist or get out of place, as it lies snugly in the recess in the bottom ofthe bed`plate a and the lever-clampm Z) b, which holds it in place, and also that the shade remains suspended at any height by the pressure of the lower limb of the lever-clamp against the cord g caused by the spring d, and especially of the bend in the lever against the shouldcrf in the bed-plate a, which produces a crease or corrugation in the cord that prevents it from slipping.

It will also be seen, as a peculiar feature in this device for fastening window-shades, which confers upon it great convenience and durability, that by touching the upper part of the lever b and depressing the spiral spring d the lower limb of the lever is raised so as to relieve the pressure upon the cord g, whenthe shade may be lowered very easily by pulling on the lower edge gent-ly, or on a tassel; or it may be so set and regulated by bearing on the spring as to fallof itself verygradually. These features are of great prac tical importance, and distinguish this shade-fastenin g from all others 1n use.

Having thus described my invention, what tween it and .the window-easing, e hole, s, for the cord to pass through over the shoulder f, with a, crease or eorrugatien in it .to prevent sli1)piug,eombii1edwith the sprin g-lever Clamp b, substantially as and for the purposes herein described.

2. The lever-@lmnp b, with a recess in it for receiving the cord under the lower limb, in

combination with the spiral spring d and the bed-plete a., constructed and operated substantielly as and for the purposes herein specifled.

- ELBRIDGE J. STEELE. Witnesses:

' S. ROGKWELL,

C. E. MITCHELL.

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