US2575004A - Venetian blind - Google Patents

Description

Nov. 13, 195] H. E. CONDRON, JR

VENETIAN BLIND Filed Ndv. 12, 194s Patented Nov. 13, 1951 UNITED .PATENT' omce ap i a no ei e f 12, 1946, Serial No. 709,210

wh msinvention relates to shades for windows and other openings and. more particularly... to shades of the transverse slattype.

An object of this invention. is to providea shade oi -the transverse slat type wherein theslats are pivotally mounted for angular adjustment in. uni.- son and wherein one or more of theslats maybe removed atwill to thereby eliminate the use of webs for supporting the slats and cords for hold.- ing the slats in position and for raising and low.- ering'the slats.

"Another objector this invention is to provide a shade 'or'blind ofthe transverse slat type, wheres in the 'me'chanism for supporting the. slats is permanently secured to the window. frame, re..- sulting in a' low cost, economical and efficient shade. I 7

Other objects and advantages reside in the construction of parts, the combination thereofand the mode of operation, as will become more ap parent from the following description.

In the drawings, Figure l is a perspective view of a window frame provided with a shade or blind oi -the transverse slat type.

Figure 2 is an enlarged, fragmentary, perspective view taken substantially 'on'the line 22 of Eigure 1.

Figure 3 is another enlarged, fragmentary, per spective view takensubstantially on the line 3-3 of Figure ljwith' the slatsremoved.

Figure 4 is a cross sectional view taken substantially on the line 4-4 of Figure 3. I

Figure 5fdiscloses a modificationshowi-ng algorru a e slat. -j

Figure 6 discloses another modification showing a ibb'd slat. V l M Referring to the drawings, the reference character It] indicates a window frame provided with the jambs l2 and M. The blind includes a pair of channel-like frame members and 22. The channel member 20 is secured to the jamb l2 by a plurality of screws 24. The channel 22 is secured to the jamb M by a plurality of screws 26. Members 20 and 22 are provided with a plurality of equally spaced apertures 28.

The channel 20 has pivotally attached thereto a plurality of slotted brackets 30, each provided with a stop or limiting projection 32. The flanges 34 extend parallel to each other and are snugly seated over the ends of the transverse slats 36. The flanges 34 are preferably made from resilient material, so as to yieldably engage the ends of the slats 36, to frictionally hold the ends of the slats 36 in position.

Each of the slotted brackets 30 is pivotally at- 2. tached to an adjusting. bar or link 40, intercomnecting all of the brackets, so that if one bracket is adjusted about the pivot 42 attaching the bracket to the channel .20, all of, the brackets are adjusted in unison through the sameangulardisztance. In order to facilitate. the adjustment of theslats, one of the brackets is providedwith an extension 44, supporting a hand-griphandle. 46;, functioning as a lever for adjusting the angular position of the slats.

The end of each slat 36.0pposite, the bracket 30 is provided with a pintle or. pivot 50, projecting into an aperture 28 in thechannel 22, so as to be journalled therein. The angular relation of the slats may be adjusted, so as to admit more or less light. Instead of raising the lowerslats, so asto provide an opening, any number of slats may be removed by slipping theends of. the-slats 35 from the brackets 30. After the end of the slat clears the bracket 30, the pintle 50, may be. pulled out of the aperture 28. By this arrangement, any size opening may be provided.

The shade may be sold in standard sizes. The channelmembers 20 and. 22, bein madefrom sheet metal, can easily be cut to the desired length, thensecured in position by means of the screws, 24 and 25;. The adjusting, bar or linkiljl is also severed to length. The ends. of the slats 36, projecting into the brackets 30 are then. cut toproper length, so that the slats may flt the window opening. As may be clearly seenin Figure.2; the slats 36 are cut so as to be slightly shorter than the distance from the aperture in the channel member 22 to the bottom of. the channel member 3|] to permit removal of the slats. The slats are cut to such alength thatthey maybe removed.

In the modification disclosed in Figure '5, a cross sectional view of a corrugated 0r fluted slat has been shown. This may be made from sheet metal or plastic molding material, reenforced or stiffened by corrugations. The end 62 of the slat that project into the bracket 3B is preferably flattened.

In the modification disclosed in Figure 6, the slat 10 has been provided with a longitudinal rib l2 terminating in spaced relation from the end 14 of the slat projecting into the bracket 30. The slats 60 and 10 have both been shown with flattened ends 62 and 14. For some installations, it may be found desirable not to flatten the ends; but to provide slots for the reception of the ends that are sufliciently wide to accommodate the width of the rib or ribs, as the case may be. Such a structure may be produced more economically the cords and cannot effectively clean around thewebs. The shade disclosed herein can readily be cleaned by slipping the slats out of the brackets,

so as to permit each of the slats to be washed,

dusted or otherwise cleaned, and then replaced. There are no webs and no cords to be soiled; The slats are unobstructed from one end to the other.

Although the preferred embodiment of the device has been described, it will be understood that within the purview of this invention various changes may be made in the form, details, proportion and arrangement of parts, the combination thereof and mode of operation, which'generally stated consist in a device capable of carrying out the objects set forth, as disclosed and defined in the appended claims.

Having thus described my invention, I claim:

1. A blind of the transverse slat type for a window opening, said blind including apertured channel members permanently secured to the jambs of the window frame, there being one channel member for each jamb, a plurality of equally spaced brackets pivotally mounted to one of the channel members, each of said brackets including a pair of parallel flanges directed in planes normal to the longitudinal axis of the channel members, a stop projecting outwardly from the bracket adjacent the ends of the flanges, means for interconnecting the brackets so as to cause the brackets to be adjusted in unison, and a plurality of slats slightly shorter than the distance from the portion of the brackets between the flanges to the aperture in the channel member mounted on th opposite side of the window frame, each of said slats being provided with a pintle in one end, said pintles being journalled in the apertures in the channel member opposite the brackets, the other ends of the slats bein removably mounted between the flanges of the brackets and normally in contact with the stop, a vacant area in the blind being provided by removing some of the slats.

2. A blind of the traverse slat type for a window opening, said blind including aperturcd channel members permanently secured to the jambs of the window frame, there being one of the channel members, each of said brackets including a pair of parallel flanges directed in planes normal to the longitudinal axis ofthe channel members, means for interconnecting the brackets so as to cause the brackets to be adjusted in unison, one of the brackets terminating in a handle for oscillating the bracket and with it the other brackets in unison, and a plurality of slats slightly shorter than the distance from the portion of the brackets between the flanges to the aperture in the channel member on th opposite side of the window frame, each of said slats being provided with a pintle in one end, said pintles being journalled in the apertures in the channel member opposite the brackets, the other ends of the slats being removably mounted between the flanges of the brackets, a vacant area in the blind being provided by removing some of the slats.

3. A blind of the transverse slat type for a window opening, said blind including aperturcd strips permanently secured to the jambs of the window frame, there being one strip for each jamb, a plurality of equally spaced brackets pivotally mounted to one of the strips, each of said brackets including a pair of parallel flanges directed in planes normal to the longitudinal axis of the strips, 3, stop projecting outwardly from the bracket adjacent the ends of the flanges, means for interconnecting the brackets so as to cause the brackets to be adjusted in unison, and a plurality of slats slightly shorter than the distance from the portion of the brackets between the flanges to the aperture in the channel member on the opposite side of the window frame, each of said slats being provided with a pintle in, one end, said pintles being journalled in the apertures in the strip opposite the brackets, the other ends of the slats being removably mounted between the flanges of the brackets and normally in contact with the stop, a vacant area in the blind being provided by removing some of the slats.

HARRY E. CONDRON, JR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 32,920 Wyberd July 23, 1861 313,859 Forhan Mar. 17, 1885 1,583,597 Lafferty May 4, 1926 1,701,695 Paine Feb. 12, 1929 1,888,522 Ward Nov. 22, 1932 2,386,380 Andresen et a1 Oct. 9, 1945

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