US1001469A - Venetian blind. - Google Patents

Description

G. SOLLITT.

VENETIAN BLIND.

APPLICATION FILED AUG. e, 1909.

WL' m6152565. Invenfvr.

GEORGE SOLLITT, F HASTINGS, NEW ZEALAND.

VENETIAN BLIND.

. Specification of Letters Patent,

Patented Aug. 22, 1911.

Application led August 6, 1909. Serial No. 511,652.

' the manner of the well known spring roller fixed to the edges of t blind.

According to my invention thin metal tapes passingover guide rollers are used 1n place of the pulleys and cords usually employed for raising the slats, 'and the angling of the slats or louvers is effected by an endless cord passing around'a sheave fixed to the top slat, to which Slat ladder tapes are fixed 1n the ordinary way. Tapes supporting the slats are fixed to the top slat and passing over guide rollers provide a passa e for the metal tapes referred to.

Re erring to the accompanylng drawings z-Figure 1, is a front elevation, and Fig. 9. is a sectional view taken on a vertlcal plane through one of the ladder ta es. Figs. 3 and 4, are respectively front an side elevations of the bottom sheave and operating knob for eHecting the angling of the slats.

The slats, two only of which are shown, 1 and 2, are carried in ladder tapes one air only 3 of which is shown; and these la der tapes are secured to the edges of the angling slat 4. Supporting tapes Il and L1" also e slat 4 upon each side of the ladder tapes 3 pass over guide rollers 5 and 6 respectively mounted in brackets 5a upon a spindle 6a, and leave a space 7 through which a thin metal suspending tape 8 preferably of thin sheet copper passes, which tape, at its lower end, is connected to the bottom slat of the blind in any ordinary way. Each metal tape is secured to and adapted to wind upon a drum 11, and is guided accurately through slots 9 provided in the slats and lby guide rollers 10 and 10 between which sald tape passes, the roller 10a beingmounted loosely upon the spindle 6a to which the rollers 5 and 6 are secured. The drums are connected to a light metal roller 12 adapted to be revolved by an internal spring lf2aL in the direction that will cause the blind to be raised.

This internal spring and the ratchet and pawl arrangement 12 are such as commonly em loyed in spring operated roller blinds.

o the end of the upper slat 4 is fixed the angling pulley 13 around which an endless operating cord 14 for angling the slats is passed one and a half times. This pulley cord is led one and a half times around a sheave 15 secured to a knob'l, which is turned one way or other upon its stud 16a according to the anglin which it is desired the slats shall assume. he cord is kept taut by a spring 16b in compression between a bracket 17 and a pa-wl 16c fixed upon the stud 16". The knob can be moved up and down in the bracket 17 which has a slot 18 in which the stud 16 may slide to regulate the tension of the operating cord. A rack 19 integral with the bracket 17 engages the pawl 16 to prevent slackening of the cord 14 after it has been made taut by the spring 16".

The blind is lowered by pulling it down as in the case of the Ordinar sprin roller blind. To raise it, the ratc iet `mec anism on the spring roller is released by giving the blind a quick pull at the bottom. The roller will then revolve until it is checked when the blind is at the required height.

What I claim and desire to secure by Letters Patent of the United States is 1. In a Venetian blind, the combination with a plurality of slats, and ladder tapes connecting said slats, of supporting tapes attached to the upper slat, rollers over which the su orting tapes pass, a windin roller, and litting tapes attached to said ro ler and to the bottom Slat and guided by rollers mounted in the support for the rollers over which the supporting tapes pass.

2. In a Venetian blind, the combination with a plurality of slats, and ladder tapes connecting said slats, of a pair of supporting tapes attached to the upper Slat, a winding roller, and a lifting tape attached to the bottom slat and to said roller and extending between said\ pair of supporting tapes.

3. In a Venetian blind, the combination with a plurality of slats, and ladder tapes connecting said slats, of means for sup orting the upper slat, a winding roller, a lilling tape attached to said roller and to the lower slat, and a pair of guide rollers arranged between the upper slat and the winding roller and between which said lifting tape passes.

4:. In a Venetian blind, the combination tapes having both ends attached to the upper slat, rollers over which said tapes pass, a Winding roller, a lifting ta e connecting the lower Slat with said win ing roller and extending through slots in the other slats and between said supporting tapes, and

means for adjusting the supporting tapes about their supportin rollers.

5. In a Venetian bind, the combination with a plurality of slats and ladder ta es connectin said slats, of a winding rol er,' having anges providing annular guides Leonesa about its body, a lifting tape attached to the u lowest slat and to said roller between two of said flanges, two supportin tapes attached at both ends to the upper s at and situated on opposite sides of said lifting tape, and rollers over which said supporting tapes 2( pass.

In testimony whereof l have signed my name to this specification in the presence of two witnesses.

GEORGE SULLlTT. Witnesses:

SAMUEL T. TONG, GEORGE FREDERICK RoAcH.

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