US2218508A - Venetian blind - Google Patents

Description

OCL'ZZ, 1940 s;s GEN-LE 2,218,508

VENETIAN BLIND I Filed May 10, 1938 2 Sheets-Sheet 1 Ii'g L INVENTOR. SCIPlO 5- GENT\LE TTORNEY.

Oct. 22, 1940. Y s s; IGENT|LE 2,218,508

.vmuncrxm BLIND v Filed ma 10; 1933 2 Sheets-Sheet 2 INVENTOR. SCI P10 5. GENTILE.

Patented Oct. 22, 1940 UNITED STATES VENETIAN BLIND Scipio S. Gentile, North College Hill, Ohio Application May 10, 1938, Serial No 207,020

2 Claims.

to yieldingly lock the bar in positions to which a parallel movement of the slats.

it may be adjusted.

My invention will be further readily under-' stood from the following description and claims, and from the drawings, 'in which latter:

Fig. 1 is a front view of my improved blind in raised position.

Fig. 2 is a vertical section of the same, taken in the plane of the line 2-2 of Fig. 1.

Fig. 3 is a vertical detail section, taken in the plane of the line 3--3 of Fig. l, partly broken away, showing the slats in lowered position.

Fig. 4 is an end view of the tilting mechanism, partly broken away.

Fig. 5 is a detail section of the same, taken in the plane of the line 5-5 of Fig.4, and;

Fig. 6 is a detail section, taken in the plane of the line 66 of Fig. 1.

My improved Venetian blind is mounted in brackets II and [2, which are secured to the window casing in any suitable manner, as by screws I3, The bracket I l is provided with an extension 14 arranged to receive one end of a roller I5. The

bracket l2 has an extension It provided with a slot I1 therein to receive the winding stem [8 of the roller l5. The roller I5 is similar to the ordinary shade roller in common use, having an internal spring l9 tooperate the'roller.

A tilting bar 20 is pivoted in the extensions 2| and 22 of the brackets ll and I2. Slat supporting straps 23 are attached to the bar 20 and are provided with spaced double connecting straps 24 and 25, between which slats 26 can be easily inserted or removed; The cross straps may be attached or woven into the supporting straps and are preferably made of flexible yielding material. The supporting straps are attached to the lower pull bar 21 in any suitable manner.

Elevator tapes 30 and 3| are secured at one end to the pull bar 21, and at the other end to rollers 32 mounted on the roller I5. The elevator tapes 30 are positioned in the rear of the blind and the tape 3| in front of the blind, thus providing guides for the slats when the blind is raised to evenly stack the slats against the tilt bar. Guides 33 are secured to the brackets II and I2 and a guide 34 is secured to the tilt bar to guide the tapes on the rollers to insure It will be apparent that in large blinds additional elevator straps may be employed. Likewise in large blinds greater spring tension is necessary in the roller to lift the blind, therefore it will also be apparent that in such cases a spring operating mechanism can be incorporated in both ends of the roller l5.

In order to tilt the slats to close or open the blind, the tilt bar is pivoted in the exten- 5 sions 2| and 22 on screws or pins 40 and 4| received through the extensions and fixed in the tilt bar. An end plate 42 is secured to the tilt bar as by screws 43 and is provided with balls 44 urged outwardly by springs 45 arranged to 10 snap into apertures 46 regularly spaced in a circle in the extension 22. A spring 41 about the pivot 40 urges the tilt bar toward the extension 22.

Suitable extending means are provided for 15 moving the tilt bar and in the exemplification shown in the drawings, comprises a rod 48 pivoted as at 49 to the tilt bar for easy manipulation of the tilt bar in either direction.

It will be apparent that my improved blind is 90 simple in construction and easy to operate. To operate the blind, one merely pulls on the pull bar 21 similar to the operation of an ordinary window shade, to raise or lower it.

If it is desired to enhance the appearance of the blind mounting the working mechanism may be boxed in. The slats 25 may be made of various materials and can be removed or replaced at will by merely sliding the slats out of the retaining straps 24 and 25. If desired the slats may be notched slightly inline with the supporting straps to facilitate positioning the slats in vertical alignment.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a Venetian blind, a tilting bar, brackets for supporting said bar, said bar pivoted in said brackets, a plate secured to one end of said bar, apertures in said plate, balls in'said apertures having tension means urging said balls outwardly, means for retaining said balls in said plate. and a plurality of apertures in one of said brackets for engagement by said balls.

2. In a. Venetian blind, a tilting bar, brackets for supporting said bar, said bar pivoted in said brackets, a plate secured to one end of said bar, apertures in said plate, balls in said apertures having tension means urging said balls outward- 50 ly, means for retaining said balls in said plate,

a plurality of apertures in one of said brackets for engagement by said balls, tension means between said bar and the other of said brackets, glld a pivoted depending rod for actuating said ar. I

SCIPIO S. GENTILE.

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