US1155546A

US1155546A - Disappearing window-screen.

Info

Publication number: US1155546A
Application number: US80815A
Authority: US
Inventors: Joseph A Bridges
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-01-06
Filing date: 1915-01-06
Publication date: 1915-10-05
Anticipated expiration: 1932-10-05

Description

1; A. BRIDGES. DISAPPEARING WINDOW SCREEN.

APPLICATION FILED JAN-6 l9l5 memed Oct. 5,1915.

IN VEN TOR, Jase Ma Mg. Bmidyea WITNESSES JOSEPH A. BRIDGES, OF SAN FRANCISCO, CALIFORNIA.

DISAPPEARING WINDOW-SCREEN.

Application filed January 6, 1915.

To all whom it may concern:

Be it known that I, Josnrn A. BRIDGES, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Disappearing Window-Screens, of which the following is a specification.

One object of my invention is to provide simple and inexpensive means for balancing window sashes, whereby, when either sash is moved vertically, the other sash will. also be moved vertically in the opposite direction. Again, a window should be open both at top and bottom in order to thoroughly ventilate a room, and both openings should, in hot weather, be closed by fly screens. To do this usually requires four operations.

A further object of my invention is to provide an improved attachment to window sashes by means of which the above result can be accomplished in a single operation.

In the accompanying drawing, Figure 1 is an inside view of an open window embodying my invention; Fig. 2 is a vertical section thereof on the line 22 of Fig. 1; Fig. 3 is an enlarged sectional View on the line 3-3 of Fig. 2; Fig. 4 is a cross section on the line M of Fig. 3.

' Referring to the drawing, 1 indicates a window frame, in which can move vertically a lower sash 2 and an upper sash 3. Said

sashes

2 and 3 are operatively connected to move in unison by means of upper and lower pairs of cords 4 and 6, connected respectively to the upper and lower portions of the sashes, and passing respectively around upper and lower pairs of pulleys 7, rotatably mounted in blocks 8 secured to the window frame. By means of this arrangement, when either sash is moved vertically in one direction, the other sash is also moved vertically in the opposite direction, and the sashes are thus balanced. The cords 4: and 6 are, however, connected to the sashes by means of loops at the ends of said 'cords passing over hooks 9 secured to the sashes, and thus, by detaching said loops from the hooks, the sashes can be vertically moved independently of each other.

In the inner surfaces of the lower rail of the inner sash and the upper rail of the outer sash are secured studs 11 which can enter key-hole-shaped slots 12 in sheet-metal hooks 13, pivotally connected. as shown at Specification of Letters .Zatent.

Patented (let. 5, 1915.

Serial No. 808.

14, to links 16, which are pivotally connected, as shown at 17 to end bars 18 of flexible screens 19, which are wound upon hol low rollers 20, bars 21 at the other end of said screens having hooks 22 which engage slots 23 in said rollers. Said rollers are contained in casings 24 located respectively at the upper and lower ends of the window frame, and are automatically rotated, to wind up the screens upon-the rollers, by

means of springs 25, coiled around fixed rods 26, and secured at one end to said rods and at the other end to ends of the rollers. These springs, by rotating said rollers, automatically wind uptthe screens when the sashes are moved iggthe directions toward the respective rollers.

It will be seen that, with this construction, when the window is open, the screens at both top and bottom, are automatically extended to close the opening between the top and bottom respectively of the sashes and the top and bottom of the window frame, so that it is impossible for flies or other insects to enter the room when the window is open. However, when desired, either screen may be detached from its sash by drawing out the screen until the studs 11 on the sash project through the wide parts ofthe slots 12, and then the sashes can move independently of the screens. The hooks 13 can then be hooked in holes 27 in the casings 24.

28 indicates a cam pivoted upon the inner sash, and which can be used to lock the inner sash, and therefore also the outer sash, in any position to which it has been moved.

It will be observed that very little change is needed to apply my improvement to win dows of the ordinary style.

For this pur-' pose it is necessary only to cut off a shortpiece of the top of the parting bead between the two sashes and rest the upper casing 24 Y upon the tops of the parting beads and against the inner surface of tl of the window frame, as clearly shown in Fig. 2, and to cut off a short portion of the bottom of the inner stop and insert the lower casing '24 below said stop, as shown in Fig. 1, and

ends of the window frame and a cord around each pulley connected at its ends to said sashes, upper and lower flexible screens connected at one end with the upper and lower rails respectively of the upper and lower sashes, and upper and lower rollers around which the upper and lower screens are respectively wound.

2. In combination with inner and outer sashes of a window, pulleys at the upper ends of the window frame and a cord around each pulley connected at its ends to said sashes, upper and lower flexible screens Copies of this patent may be obtained for detachably connectedat one end with the 'upper and lower rails respectively of the uping witnesses. t

V JOSEPH A. BRIDGES. \Vitnesses FRANCIS M. WRIGHT, D. B. RICHARDS.

five cents each, by addressing the Commissioner ot Patents. Washington, D. 0.