US930923A - Rolling screen. - Google Patents

Description

G. BAUER.

ROLLING SCREEN.'

APPLIGATION FILED SEPT. s, 190s.

930,923. Patented Aug. 10, 1909.

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li@ I lL--lL-/S Fam Mail C. BAUER. ROLLING SCREEN.

APPLICATION FILED SEPT. s, 190s.

Patented Aug. 10, 1909.

INVENTOR WHW CONRAD BAUER, OF PITTSBURG, PENNSYLVANIA.

PATENT OFFICE.

ROLLING SCREEN. f.

Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed September 8, 19408. Serial No. 451,989.I

To all 'whom it may concern.'

Be it known that I, CONRAD BAUER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Im rovement in Rolling Screens, of which the following is a full,clear and exact description, reference being had to the accompanying drawings, forming .part of this specication, in which- Figure 1 is a vertical sectional'view ofy a window provided with my improvement; Fig. 2 is an enlarged vertical sectional view illustrating the o erating mechansim, and Figs. 3 and 4 are etailed views of a portion of a screen to be hereirgifter referred to.

My invention relates to an improvement in rolling screens and I have shown it a plied to a shutter screen in combination wit a fly screen for a window, although it may be used in like manner in connectiony with other flexible screens for doorways and other openings.

I will now describe my invention so that others skilled in the art to which it appertains may understand and construct the same.

In describing my invention, the reference numeral 2 illustrates a window frame which is rovided with the usual sashes and at each si e of the frame, secured to the upright portions thereof are the'vertical guideways 3 in which are adapted to travel, the screens 4 and 5 carried by the` rollers 6 and 7 at the top of the window frame. Theouterscreen 4, which is carried by the roller 6 is composed of a series of transverse slats 8 which are hinged together by means of tapes 9 which are threaded `through the centrally disposed openings 10 of each sla't. These slats are provided with space pieces 11 which fit between and conform to the shape of the adj acent edges of the'slats. The purposeof these space pieces is to admit light and air and `to a so prevent rubbing. and friction of the slats during the rolling operation of the screen. The inner ily-screen 5 carried by the roller 7 may be fbrmed of any suitable material, such as wire netting and may be provided with an end weight as indicated by the reference numeral 12 for the'purpose of keeping the screen in a taut or stretched conditlon.

The rollers 6 and 7. at the top of the window-frame are journaled at oneI en d in the standard 13 and are rovided each with a gear wheel 14 adapte( to mesh with the intermediate pinion 15 which in turn meshes.

' with the inion 16 carried lby the journal of 'the sproc et wheel 17 The pinion 15 is` journaled on the end ofthe lever arm 18 l which is loosely mounted on the journal of the operating sprocket 17. The opposite end of the arm 1-8 is provided with an operating rod 19 which projects down along the inside 'of the casing of the window and terminates in the outwardly projectinghandle 20. By means of the rod 19 the lever arm 18 is caused to be shifted so as to bring the pinion 15 alternately into ymesh with either of the gearwheels 14, according as it may be desired to roll or unroll the outer or inner screen.

Carried by the lever arm 18 are the locking fingers 21 and 22 provided with teeth 23. These Alockingiingers are adapted to alternatel' engage .with the teeth of the gear-` Wh'ee s 14 so as to hold one of the rollers 6 and l 7 against rotation While the 'other is being operated.

When it is desired to operate the outer screen,'the lever arm 18is caused to be shifted so as' 13o-bring' the operating pinion 15 into mesh with the upper gear-wheel 14 the .tooth carried by the lockin finger 21 engagino` with the teeth of the lower gear-wheel an holding the inner screen roller against rotation. When it is desired to bring the inner screen into operative connection Awith the ,winding mechanism the lever arm 18 is caused to be shifted so as to disengage the A locking finger 21 from the lower gear-wheelv 14 and to simultaneously bring the operating pinion 15 into engagement with the lower ear-wheel 14 and the locking finger 22 into ocking engagement with the upper gearwheel 14 carried by the roller 6. The sprocket wheel 17 is operated by the sprocket c ain 24 which passes over the 'guide rollers 25 yat the top of the Window frame and the guide roller 26 at the bottom of the windowframe.- By pulling on the sprocket chain, theinner or outer screen, according to the connection of the pinion 15, may be raised or lowered.

, It will be apparent to those skilled inthe artV that many changes may be made in the construction of the mechanism without departing from the s irit of my invention.

My invention.A w1 l be appreciatedby those skilled in lthe art. The screen is simple, strong and durable and by means of its compactness may be readily applied to a window casing of/ordinary construction.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1l In a screen, the combination of a pluralityof rollers, screens adapted to be Wound thereon, gear-Wheels carried by the rollers, a shiftable actuating device intermediate the gear-wheels, and means for bringing the said yactuating device into engagement With any one of the gearing-Wheels.

2. A window screen including in combination an inner and an outer screen, rollers on which said screens are adapted to be Wound,

gear-Wheels carried by the said rollers, an intermediate drive gear and devices for bringing` the intermediate drive gear alternately into mesh with the roller gear-Wheels.

3. A Window screen including in combination an inner and an outer screen, rollers on` which said screens are adapted to be wound,

gear-Wheels carried 'by the said rollers,`shiftable actuating and locking means intermediate the roller gear Wheels, `and devices torsimultaneously bringing the actuating device into Aoperative engagement with one of the roller gear-wheels and the locking device into engagement With the other gear wheel.

4. vA Window screen, including in combinaand means for bringing the said actuating means alternately into operative connection With said rollers.

5. A window screen including in combination an inner and an outer screen, rollers on which said screens are adapted to be Wound, drive-Wheels carried by the said'rollers, an intermediate drive-Wheel, and means for bringing the intermediate drive wheel alternately into engagement with the roller drive-Wheels.

6. A Window-screen, including in combination an inner and an outer screen, rollers on which said screens are adapted to be wound, actuating means intermediate the said rollers, locking means intermediate the said rollers,

-and means for simultaneously bringing the actuating means into operative connection with one of the rollers and the locking means into connection with the other roller.

In testimony whereof, I have hereunto set my hand.

CONRAD BAUER. Witnesses:

M. A. BARTH, M. ARTHUR KELLER.

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