Nov; 5, 1946. 2,410,549 E. A. OLSON VENETIAN BLIND 2 Sheets-Sheet l // ‘Y \\\\\\\\ \\\\\\\\\\\\Y a a\(r). ». . 2%i .4 2x a. m ,2, M 2. er ///A'v V EN T EDWIN A. OLSON - WMY Wm ATTORNEYS Nov. 5,‘ 1946. 2,410,549 E. A. OLSON' VENETIAN BLIND Filed July I51, 1945 2 Sheets~Sheet 2 INVENTOR EDWIN A . OLSON B)’ - ATTORNEYS Patented Nov. 5, i946 ‘_ 2,410,549 UNITED ‘STATES PATENT oFFicE 2,410,549 VENETIAN BLIND Edwin A. Olson, Los Angeles, Calif. ‘' Application July 31. 1945, Serial No. 607,924 '6 Claims. (cl. 160-34) 1 ~ . This invention relates to Venetian blinds which are the type of blinds formed with a plu prised of a rigid head casing I l which may be ar ranged transversely at the head of a window and rality of horizontally disposed parallel slats, which are ?exibly united and spaced apart by secured to the frame thereof so as to dispose the - means of vertically suspended ?exible tapes. In blinds of this type it is customary'to raise blind in register with the window opening, as is customary. The casing II is, of course, ?xed by screws or other fastening elements to the window and lower the same by means of a pull cord ar-_ ranged at one side of the blind and to angularly frame at the head thereof. ' The casing includes a top plate l2, a front plate adjust the slats to vary the light admitting area I 4 and a rear plate l5, which are rigidly connect by a second pull cord at the opposite side of the 10 ed by end plates is. If desired, the rear plate blind. > l5 may be dispensed with. ‘ Arranged longitudi It is the principal object of my present inven nally within thecasing is a head rail I‘! mounted for rotation in the casingv Ii. For this purpose tion to provide an improved Venetian blind in which raisingand lowering the blind and angular ly adjusting the slats may be effected by nia the head rail is provided with pintles I8 rotatably 15 mounted in the end plates is in a manner per ' nipulation of a single control element. It is a further object of my invention to pro vide an improved and simpli?ed operating mech anism for Venetian blinds of the character re ferred to which is characterized by smooth and 20 e?icient operation, simplicity of mechanical con struction and ease of manipulation._ It is a further object of my invention to pro vide a Venetian blind of 'the character referred to ‘in which the operating element is inconspicu ously disposed when the blind is in extended con mitting the head rail to revolve about a horizontal axis. At one end the head rail is formed with a ?xed pulley IS, the operating face of which is concentric to the pintle l8 and the axis of rota tion of the head rail H. > At the lower end the blind is formed with a bottom rail 20 connected with the top rail by spaced ?exible tapes 2| as in usual practice. Longitudinally disposed parallel slats 22 are dis posed at spaced intervals between the head rail l1 and the bottom rail 20 and are supported be tween the tapes 2| by means of ?exible trans One form which the. invention may assum verse tapes 23 fastened at their ends, of course, is exempli?edin the following description and to the interior surfaces of the suspended ?exible illustrated by way of example in the accompany 30 tapes 2 I. dition over the window opening. - ing drawings, in which: » For the purpose of raising and lowering the' Fig. 1 is a perspective view of a blind con structed. in accordance with my present inven— tion, showing the head casing removed to more 7 clearly disclose the blind operating mechanism. Fig. 2 is a plan sectional view through the head casing, showing certain features of construction. Y blind a raising and lowering cord 24 is provided, one end of which is secured to the bottom rail 20 at a point 25. From this point, the raising and lowering cord extends vertically through the slats and through the head rail l1, and thence about a pulley 26, then longitudinally over a pulley 21, thence downwardly through a hollow adjustment pulley 28 and is secured to an operating element Fig. 3 is a central longitudinal section through the blind and the head casing, disclosing the manner of construction of my improved blind. 40 29. The adjustment pulley 28 rotates about a ver Fig. 4 is a vertical sectional view taken on line tical axis and is mounted in the casing H for 4-4 of Fig. 4. - ’ ' such operation. Fig. 5 is a transverse sectional view taken along line 5—5 of Fig. 2. - Fig. 6 is an enlarged fragmentary view in ver - ' A second raising and lowering cord 24a is fas tened to the bottom rail as at 25a and extends vertically upward through the slats and through tical section taken through the center of the the head rail IT and thence over a pulley 26a slat adjustment pulley. and a pulley 21a and downwardly through. the ad justment pulley 28 and fastened to the control . Fig. 7 is a perspective view of the latch mem ber. ' ' element 29. Fig. 8 is a fragmentary view in perspective of _' a portion of one of the slats employed. Fig. 9 is a transverse sectional view taken on line 9--9 of Fig. 6. _ Referring more particularly to the accompany ing drawings, I0 indicates a Venetian blind com? . , The length of the raising and lowering cords 24 and 24a is such that when the blind is in fully extended position, the control element of handle 29 is in a position with its upper end tele scoped into a socket 30 formed as an.extension oi ‘the lower end of the pulley 28. This socket 2,410,049 3 has a square socket opening therein snugly ?t 4 . 24 and 24a upwardly _to lower the blind, it is only necessary to give a sharp pull downwardly on the control element 28 which disengages the lower end of the control element or handle 29. Thus, end of the latch member and then move the cords when the portion 3| of the control element 29 is inwardly toward the center or the socket 38 to projected into the socket 30, the control element render it lne?ective and enable the blind to be may be rotated ‘to effect rotation of the adjust lowered. The minute that slack occurs‘ in the ment pulley 28. Such rotation of the adjustment cords and they are movedradially outward from pulley e?ects angular adjustment or the slats. the center of the socket, the latch member 35 ' This is accomplished by fastening one end of an adjustment cord 32 to the pulley 28 and giv 10 becomes e?ective to latch the blind against fur ther extending movement. ing it several turns thereabout, then leading said In operation of the device, the blind is con- ' cord over a pulley 33, winding the same about the structed and assembled substantially as illustrated pulley IS on the head rail l'l, leading said cord and described and the casing II is mounted on from said pulley over a pulley 34, and thence the head rail of the window. In this condition winding it around the adjustment pulley 28 and the squared end 3| of the control element 23 is fastening it thereto. The two ends of cord 32 telescoped within the squared end of the socket are connected to pulley 28 from diametrically op 30. By merely turning the control element 28 posite sides thereof so that as one end of said about its longitudinal axis, angular adjustment cord winds onto pulley 28 the other end unwinds therefrom. Because of the provision of the ad 20 of the slats may be effected to vary the area of the light admitting opening. When the control justment cable 32 and its connection with the element 25 is so turned or rotated, the adjust pulley ID, as described, rotation of the pulley 28 ment pulley 28 is rotated simultaneously there about its vertical axis will cause turning move with, which, through the adjustment cord 32, im ment of the pulley l9 about its horizontal axis, and, consequently, angular adjustment of the 25 parts turning movement to the pulley i8 and an gularly adjusts the head rail I‘! about its pintles head rail l1, the bottom rail 20 and the inter I8. This angular adjustment of the head rail I1 vening slats 22 will be e?'ected as in the normal is accompanied, of course, by similar angular ad ‘operation of Venetian blinds. justment of the bottom rail 20 and the slats 22. It will ‘be seen that the pulleys 281 21, 28a and If it is desired to collapse the blind, it is only 21a are rotatably mounted in brackets suspended 30 from the top wall 12 of'the head casing ll.. necessary to pull downwardly on the control ele-. ment or handle 29, which pulls the bottom rail 20 ‘These pulleys are rotatable about horizontal axes. _upwardly through the cords 24 and 24a. When The pulleys 33 and 34 are rotatably supported in the blind has been collapsed a desired amount, brackets ?xed to the front wall l4 of the casing ting a complemental square end II on the upper II and revolve about a vertical axis as shown. the cords 24 and 24a are allowed a slight amount of upward movement in the socket 30, which will From the ioregoingit is obvious that when the enable the clutch 35 to become effective and latch control element or handle 23 is pulled down the blind in that condition, as described. wardly, it will cause the raising and lowering If it is desired to further collapse the blind, a' cords 24 and 24a to elevate the bottom rail 28 and thus collapse the blind into a small and 40 pull is again exerted on the handle 29 to collapse the blind to the additional desired extent. compact condition at the bottom of the head cas If it is desired to lower the blind or extend the ing II. This collapsing, of course, is permitted same,'a slight pull is exerted on the handle or because of the provision of the ?exible tapes 2| control element 29 and the cords 24 and 24a which connect the head rail II to the bottom rail , just above the handle are moved by the handle 20 and which supports the slats at spaced inter radially inward of the socket 30 to render the vals therebetween. clutch 35 ineffective. The cords 24 and 24a in It is seen that the raising and lowering cords this position are then allowed to ‘ascend as the 24 and 24a are the medium for maintaining the blind lowers. The blind will, of course, lower slats 22 in correct endwise position between the tapes 2|. For this purpose the slats are slotted 50 due to the weight of the bottom rail 20 and the slats 22. ' from the center transversely out through one From the foregoing it is obvious that I have pro longitudinal edge, as illustrated in Fig. 8, the slots vided an improved Venetian blind wherein rais being indicated by the numeral 22a. By merely ing and lowering and angular adjustment of the turning a slat .22 approximately ninety degrees when the blind is in the condition shown in Fig. 57, slats thereof is effected through the medium of a single control element. Manifestly, the blind 1, such turning will disengage the slots 22a from here disclosed is of simple construction and can the cords 24 and 24a and enable the slat to be be manufactured at a comparatively low cost. i moved endwise from the- blind assembly. This enables the slats to be quickly and easily removed While I have shown the preferred form of my . for cleaning or redecorating. Obviously, such 60 invention, it is to be understood that various operation does not require the removal of any changes may be made in its construction by those mechanical fastening means, nor necessitate an skilled in the art without departing from'the . entire disassembly of the blind. spirit of the invention as de?ned in the append I also provide means for latching the blind in ed claims. . collapsed condition or in a partly collapsed con Having thus described my invention, what I dition. This is effected by means of a latch mem claim and desire to secure by Letters Patent is: ber 35 which is pivoted as at 38 within the socket 1. A Venetian blind comprising a head casing, 30 just above the squared portion thereof. This a head rail pivotally mounted therein, a bottom latching means is in e?ect a one way clutch, so rail, ?exible connections between the head rail that on a downward pull of the cords 24 and 24a, 70 and the bottom rail, a plurality of slats supported the clutch is ineil'ective to clutchv the cords 24 and by said ?exible connections between the head and 24a to the interior wall of the socket 30. How bottom rails, cables ?xed to the bottom rail and projecting vertically through the slats and head ever, the latch member 35 will effect such clutch-. ing operation when the cords 24 and 24a attempt rail, pulleys carried by the casing over which to move upwardly. However. to move the cords 75 said cables are led, an operating element movable 2,410,1549 6 vertically with respect to the blind and disposed are secured whereby vertical movement of the at one side thereof to which said cables are operating element will selectively collapse and . secured whereby vertical movement of the oper--' ating element will selectively collapse and extend the blind, rotatable means operable to tilt the head rail, and complemental means on said rotatable means and the operating element whereby the latter may engage the rotatable extend the blind, an adjustment pulley disposed at one end‘ of the casing with its axis vertically disposed, a socket member relatively ?xed to said ‘pulley and depending therefrom, a cable connec tion ‘betweenQsaid adjustment pulley and the head rail whereby turning of the adjustment means to operate the same. pulley will effect pivoting of the head rail, said 2. A Venetian blind comprising a head casing, 10 operating element having a portion engaging said a head rail pivotally mounted therein, a bottom socket when the blind is extended to rotate the rail, ?exible connections between the head rail adjustment pulley and effect pivoting of the and the bottom rail. a plurality of slats supported ' head rail. by said ?exible connections between the head and bottom rails, cables ?xed to the bottom rail and 5. 'A Venetian blind comprising a head casing, ~ a head rail pivotally mounted therein, a bottom projecting vertically through the slats and head rail, pulleys carried by the casing over which‘ ‘ rail, ?exible depending connections between the said cables are led, an operating element movable removably supported by said ?exible connections between the head and bottom rails, raising and vertically with respect to the blind and disposed, at one side thereof to which said cables are head rail and the bottom rail, a plurality of slate ating element will selectively collapse and extend lowering cables fixed to the bottom rail and pro jecting vertically through the slats and head rail, pulleys carried by the casing over which said the blind, a pulley ?xed on the head rail, an ad cables are led, an operating element to which secured whereby vertical movement of the oper justment pulley mounted in the casing, a cable said cables are secured, a vertically arranged hol associated with the last named pulleys whereby 25 low pulley mounted in the head casing at one rotation of the adjustment pulley will tilt the side of the blind and downwardly through which head rail, and means on the operating element engageable with the adjustment pulley for ro said cables are led to the operating element, a socket relatively ?xed on said adjustment pulley tating the same. and forming an extension thereof, the raising 3. A Venetian blind comprising a head casing, 30 and lowering cables being of a length when the a head rail pivotally mounted therein, a bottom blind is extended to cause projection of a portion rail, ?exible connections between the head rail - of the operating element into said socket, cable ’ and the bottom rail, a plurality of slats supported ' connections between said adjustment pulley and by said ?exible connections between the head and said head rail whereby turning of the adjustment bottom rails, cables ?xed to the bottom rail and pulley by means of the operating element when projecting vertically through the slats and head the latter is engaged therewith will eifect pivoting rail, pulleys carried by the casing over which of the head rail. . said cables are led, an operating element movable vertically with respect to the blind and disposed 6. A Venetian blind comprising a head casing, a headrail pivotally mounted therein. a bottom at one side thereof to which said cables are 40 rail, ?exible depending connections between the secured whereby vertical movement of the oper ating element will selectively collapse and extend the blind, a pulley fixed on the head rail, an . adjustment pulley disposed adjacent one end of the casing with its axis vertically arranged, 45 a socket member relatively fixed .to said pulley and depending therefrom, a cable connection be tween the pulley on the head rail and said ad justment pulley whereby turning of the adjust ment pulley will be accompanied by tilting of the head rail, said operating element having a por tion engageabie with said socket when the blind is extended to rotate the ‘adjustment pulley'and eilect tilting of the head rail. 4. A Venetian blind comprising a head casing. 55 a head rail pivotally mounted therein. a bottom rail, ?exible connections between the head rail I head rail and thebottom rail, a plurality of slats removably supported by said ?exible connections between the head and bottom rails, raising and lowering cables fixed to the bottom rail and pro- I jecting vertically through the slate and head rail, pulleys carried by the casing over which said cables are led. an operating element to which said cables are secured. a vertically arranged hollow‘pulley mounted in the head casing at one side of the blind and downwardly through which said cables are led to the operating element. a socket relatively fixed on said adjustment pulley and forming an extension thereof, the raising and lowering cables being of a length when the blind is extended to cause projection of a portion of the operating element into said socket, cable connections between said adjustment pulley and and the bottom rail, a plurality of slats supported v said head rail‘whereby turning of the adjustment by said ?exible connections between the head and pul‘ry by means of thetoperating element when bottom rails. cables ?xed to the bottom rail and .00 the latter is engaged therewith will efiect pivoting projecting vertically through the slats and head of the head rail. and clutch means-in the socket‘ rail, pulleys carried by the casing over which for clutching the raising and lowering cables said cables are led, an operating element mov thereto to hold the blind in collapsed condition. able vertically with respect to the blind and dis posed at one side thereof to which said cables EDWIN’ A. OLSON.