US1069251A

US1069251A - Window-screen.

Info

Publication number: US1069251A
Application number: US61640111A
Authority: US
Inventors: George D Hartlett; William A Wheeler
Original assignee: CHARLES E POWELL
Current assignee: CHARLES E POWELL
Priority date: 1911-03-23
Filing date: 1911-03-23
Publication date: 1913-08-05
Anticipated expiration: 1930-08-05

Description

v G. DLHARTLBTT & W.,A. WHEELER.

WINDOW SCREEN. AI PLIGA ION FILED MAR. 33, 1911.

Patented Aug. 5, 1913.

UNITED s'rATns PATEN OFFICE. I

GEORGE D. BARTLETT AND WILLIAM A. WHEELER, OF NEW CANAAN,-CONNECTICUT,

ess'xenons'ny'nmnc'r AND iansivn .asslenlvranrs, or ONE-HALF TO SAID. GEORGE n. nenrrnnrr uncritical.

AND ONE-HALF T0. CHARLES E. POWELL, STAMFORD, CON- wrnnow-son snn.

Patented A ug.'5, 1913.

Application and March 23, 19 11. 7 Serial No. 516,401. c

To all whom it may concern Be it known that we, GEORGE D. Ham'- Lm'r and WrLLIAM'A. VHEELER, citizens'of' the United States, residing at New Canaan, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in WVindow-Screens, of which the following is a specification.

Our said invention consists in various improvements in the details of construction of screens for windows, of that type known as roller screens, wherein the screen may be rolled up, or extended, to accommodate any extent of window (opening, and it has for its object to provide such a screen structure the'dperation of which will not only be efiicient but practically noiseless and freefrom rattle, all as will be hereinafter more fully described and claimed. 1

which are made a part hereof and on which similar reference characters indicate similar the lower sash partly opened and the opening covered with a screen mounted on supports of our improved construction, Fig. 2 a horizontal section on the dotted line 22 in Fig. 1, Fig. 3 a vertical section on the dotted line 33 in Fig. 1, Fig. 4 a detail view of the rack and pinion separately, showing the rack in section and the pinion in elevation, and Fig. 5 a detail view illustrating a modification.

In said drawings the portions marked A represent the roller upon which the screen is mounted, B the screen and C a metal guard, or casing, surrounding the roller.

It will be understood, of course, that the window structure, includingthe frame, sash and other parts, may be of any form, that shown being used merely to illustrate the use of the invention.

' The roller 'A is preferably a metal tube of appropriate size and a metal shaft 41 extends from end to end through the same and is connected thereto by a coiled spring will be noiseless.

the other end to the window-sill by means of a n-retal strip or shoe '5.

The guard, or casing. C, is preferably of sheet metal and of a semi cylindrical form adapted to surround the roller A and inclose the screen 1 thereon. Its ends contain bearings for the ends of shaft a.

F Metal housings 10 are secured to thesides of the window-frames, said housings being of sheet metal pressed or bent to the-form best illustrated in Fig. 2, consisting of a base adapted to rest against the side of the casing, a back side adapted to extend at right angles with a base and parallel with the plane of the window, a frontside extending outwardly for a distance parallel with the back side and then turned inwardly for a distance to form a flange opposite tov and parallel with the base of said housing. Referring to the accompanying drawings A non-metallicrail 11is mounted in the ries of perforations or notches adapted to receive the teeth of 't-hepinions and serve.

as rack-bars. The shaft 0; extends beyond the ends of roller A and has pinions 13 rigidly-secured thereon which are adapted to mesh with the notches in said bars 12. Said pinions 13 and bars 12. are both preferably of fiber, or other non-metallic substance of a similar character, whereby the operation but we regard itas essential that at least one of said parts he made of non-metallic substance, as one of the leading purposes of our invention is to provide a structure of the character named, the operation of which will be practically noiseless.

. A rod 14 extends longitudinally through a tubular formation on the upper edge of easing vC and a rod 15 through a similar formation on the lower edge'of said casing. The outer ends of said rods extend beyond the ends of said casing and ar'eprovid'ed with rollers 16 of rubber, or similar nonresonant material. Said rollers fit snugly in theway formed between the adjacent faces of the

bars

11 and 12 in the housing 10. It will be noted by an examination of Fig. 2 that bar 12 is of a width to extend beyond It may be found that one 7 -or the other of said parts may be of metal,

tioal position. The teeth the line of the inturned outcrsidc of honw ing ll) and that the notches forming the rack-bar are beyond said point so that the pinions 13 may engage with said notches and clear said housing. The rods 14 and 15 with the rollers extend to within the housing and between the

bars

11 and 12, as shown.

in Fig. 5 We have shown the outer ends of rods corresponding to the rods 14 and 1:") turned at right angles, with a roller 17 thereon adapted to operatebetween adjacent faces of a liar set again.,;t the base of housing 10 and another set agai the inner face of the inturned flange. This is a nioditication of the form shown in Fig. 2 and one of the obvious changes that inay he made in the structure without departing from our invention.

In use the normalposition of the casing C is at the lower end of the runs in housings .10 or practically restingupcn the window sill where, the screen will be i-ton'ipletely inclosed by said casing. After the window is raised casing C is also lifted until theroller A is opposite end-lower rail 20 of the sash, the rollers 16 onthe ends of rods M and 15 serving to guide and keep the casing in verof the pinions l3 engaging with the notches in bars 12 serve to rotate said pinions and through them the shaft (1 which serves to wind the spring a and exert. a tension upon the screen B, keeping it taut and straight.

Having thus fully described our said invention, what. We claim as neu and desire to secure by Letters Patent, is:

1. A window screen comprising a roller, a screen mounted on said roller one edge of said screen attached to one side of the Window opening, pinions on the axis of said roller, raclcbars on each side of the Window opening with which said .pinions engage, a guard rail adjacent to each; of said rackbars, a. shield or casing mounted to cover the roller, rods extendingthrough the edges of said casing to between the rack-bars and guard rails, and rollers mounted on the ends of said rods and adapted to roll in the space. between said guard rails and said rack-oars, substantially as set forth.

2. A. window screen comprising a casing, a roller journaled Within said casing, ways in the adjacent sides of the window frame, rollers carried by said casing-and adapted to run in said ways, wheels mounted on the,

axle ofisaid roller and adapted to engage with rack bars on the window frame for rotating said axle, a screen attached at one end of said roller and at the other end to one side of thewindow opening, substantially as set forth.

3. A window screen comprising a roller, means for supporting said roller to he 'nioied vertically inihc window frame, an. axle running through said roller and carrying wheels on its outer ends adapted to en with racic cars on said window frame and operate said axle, said bars, rollers can ried on the outer ends of the structure adapted to engage in said Ways for guiding and holding said roller, and a screen attached at one end to said roller and at the other end to one side of the Window opening, substantiallyv as setforth.

4:. A 'WiXKiOW screen comprising a casing, a roller journaled in said casing, vertical Ways at the sides of thewindow opening, rack-hare forming part. of said Ways, pinng said iPiClZ-lMUTS, one of said engaging parts being nonn1ctallic, guide rollers on said casing, engaging said ways, and a screen attached at one edge to said roller and at the other edge to one side of the win doW opening, substantially as set forth.

5. A window screen comprising a casing, guide rollers on theopposite sides and ends of said casing, ways on each side of the window opening formed to receive said rollers, rack-bars alongside said Ways, a tubular roller in said casing, ashaft in said roller journaled in said casing,a spring connected at one end to said shaft and at its other end to said roller, pinions on the ends of said shaft engaging said rack-bars, the guide rollers engaging and sliding in said ways on opposite sides of said pinions, and a screen attached at one end to said roller and at the other end to one side of the Window opening, substantially as set forth.

6. A'WlIldOW screen comprising a casing carrying ROIl lTlBilllllC guide rollers on its corners, ways on the sides of the window opening in which said rollers-are mounted to run, a roller in said casing, pinions on the shaft of said roller of non-metallic material engaging ways alongside the window opening, and a screen mounted on said roller and connected at one edge to one side of the window opening, substantially asv set forth.

In witness whereof, We have hereunto set our hands and seals at Washington, District of Columbia this 15th day of March, A. D. nineteen hundred and eleven.

onoaon D: BARTLETT. [us] 'WILLIAM A. WHEELER. 1. s]

Witnesses:

1 J. LL'YoAKLEY,

E. W. Bmnrono.

ions on the ends of the roller shaft engag-