US480548A - James k - Google Patents

Description

(No Model.)

J. K. BENWAY. VENBTIAN BLIND.

No. 480,548. Patented Aug. 9, 1892.

ATOHNEYS UNITED STATES PATENT OFFICE.

JAMES K. BENWAY, OF ALBANY, NEW YORK, ASSIGNOR TO rlHE ALBANY VENETIAN BLIND COMPANY, OF SAME PLACE.

VEN ETIAN BLIND.

SPECIFICATION forming part of Letters Patent No. 480,548, dated August 9, 1892. Application filed November 24, 1891. Serial No. 412,975. (No model.)

To all whom it may concern:

Be it known that I, JAMES K. BENWAY, of Albany, in the county of Albany and State of New York,have invented a new and Improved Venetian Blind, of which the following is a full, clear, and exact description.

The invention relates particularly to the pulleys overwhich pass the cords for raising and lowering the slats of Venetian blinds,

1o the object being to improve such pulleys to the end that the slats will respond tothe cords more smoothly and with precision and the hangers of the pulleys be prevented from marring the bar from which they arey suspended.

The invention consists in the novel construction hereinafter particularly described, and dened in the claims.

Reference is to be had to the accompanying 2o drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l. is a perspective view of a Venetian blind embodying my invention. Fig. 2

2 5 is a detail View, partly in section and on an enlarged scale, of a portion of the upper bar and its immediate appurtenances, including my improved pulleys; and Fig. 3 is a sectional perspective view, the section being indicated 3o by the line 3 3, Fig. 2.

The blind shown in Fig. l is, in the main, in accordance with the invention disclosed in United States Patent to J. E. Phillips, dated January l, 1884, No. 291,222; but my irn- 3 5 proved pulleys are applicable to other forms of Venetian blinds. In the form shown there is a frame or cornice A, provided at its top rail with depending hooks B, the latter engaging the journals o, formed on the top bar C, the blind-slats D being suspended in spaced positions from said bar by strips E of webbing. In some cases hooks B are screwed into headjamb of the window, thus avoiding the use of cornice A. At one end of the bar C a pulley C is secured, over which passes the cord F, whereby the bar C, and consequently the slats D, may be tilted.

The cords G, by which the slats are raised and lowered, pass over a pulley H at the opposite end to the pulley C and over pulleys H', which are suspended from the bar C intermediate its ends, the said cords G passing thence downward through the slats D to the bottom one of such slats. Vith the exception of the pulleys H H and their means of suspension, as hereinafter described, the above parts are in accordance with the patent of J.

E. Phillips above referred to.

The hangers H2 of the pulleys H H are formed, preferably, from a single piece of 6o metal bent upon itself, forming at the bend an eye h, a shank h below said bend, and a fork or spaced ends h3 below said shank, the pulley being held by a pin h4 between said spaced ends. Projecting from the members of the shank h', at right angles thereto, are wings h5, formed, preferably, by bending outward the metal forming such'shanks.

The upper end of each hanger H2 of the pulleys H is let into a; transverse recess or 7o slot c', formed in the under side of thebar C, which recesses are intersected by concave recesses c2,y formed longitudinally in the upper side of said bar. A wire nail or like device H3 is passed into the upper recesses c2 to pass 75 through the eye 7L of the hanger, thereby suspending the hanger in secure position, While permitting it to retain the vertical position when the bar O is rocked to tilt the slats. The wings h5, it will be seen, bear against one wall 8o of the slot c when the cords G are drawn upon and protect the said wall from any injury by the hangers, and also prevent the hangers from twisting. Further, in the tilting of the bar O the broad surface presented 8 5 by the Wings will prevent the hangers from catching in the walls of the recesses.

By this improvement the operations of the blind are more positive and attended with less inconvenience, and the pulley-hangers 9o can in no way mar the bar from which they are suspended. The shank of the end pulley H is reversed, its wings lying against the wall or end c3 of the bar O, as the strain is inward on such hanger. The upper part of the bar C overhangs at this end and is provided with a plate O3, which is secured thereto, and a nail H4 or the like, passed through said plate, through the eye h of hanger, and into the wall c3, serves to suspend the said hanger. roo

2. The combination, in a Venetian blind, of

u. top bar, slats suspended therefrom and operating-cords for the slats, the said bar having -zransverse recesses in its under side and inuersecting longitudinal recesses in its upper side, hangers carrying pulleys for the operating-cords, the hangers having wings thereon for the purpose specified, and securing devices for said hangers, substantially as described.

3. As a new article of manufacture, a pulley for the cords of Venetian blinds, the hanger of the pulley having an eye at its upper end adapted to receive a pivot-pin for pivotally suspending the pulley, and a guard-wing below the eye, said wing ranging at right angles to the axis of the eye, substantially as and for the purpose specied.

JAMES K. BENWAY.

Witn esses:

DAVID M. KINNEAR, FLETCHER VosBURGH.

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