US1637731A - Window frame and sash construction - Google Patents

Description

Aug. 2, 1927. v 1,637,731

H. E. CAMPBELL WINDOW FRAME AND SASH CONSTRUCTION Filed Jan. 27. 1926 INVENTOR fifizzv CAMPEEZL LUAZ ATTORNEYS Patented Aug. 2, 1927.

UNITED STATES PATENT OFFICE.

HARRY E. CAMPBELL, OF BALTIMORE, MARYLAND, ASSIGNOR TO CAMPBELL METAL WINDOW CORPORATION, OF BALTIMORE, MARYLAND, A CORPORATION OF MARY- LAND.

, WINDOW FRAME AND SASH CONSTRUCTION.

Application filed January 27, 1926. Serial No. 83,999.

The present invention relates to windows of the type having openings through the inner .wall of the jamb, plates extending through such openings, and in which the functional relations between the sashes and the jambs take place behind the inner wall of the jamb.

Iaim to provide a window which can be made relatively cheaply and which will be particularly weather-tight. I accomplish this result by having chain lugs extending out from the sash plate, which lugs extend through second openings, through a partition in the jamb, either into the chain pockets or into inner chambers as may be desired. The chain lugs are so arranged that the lug for the lower sash is approximately at the bottom of that sash, and the lug for the upper sash is near the top. The openings through which these lugs pass do not extend the entire height of thesash. The one for the lower sash lug extends up only for the bottom half of the jamb height, whereas the opening for the upper chain lug extends down for the upper half of the sash height. A limitation of lateral movement of the sash can be taken care of by bending a portion of the sash plate at a right angle so that it will rub either against the rear of the inner jamb wall or against the partition formed,

within the jamb. As is now usual with windows of this type, means is provided for preventing a direct passage of air back of the inner jamb wall from one opening in the jamb face to the other opening. Since the sashes have meeting rails which overlap each other at the middle of the window, when in closed position, the lower sash will extend up somewhat above the top of the opening for the lower sash'chain lug, and in the same way the upper sash will go below the upper openmg.

By building my window in this way, the

opening below the upper sash and above the lower sash is completely closed when the window is closed, and there is no chance for any substantial leakage from one of these openings to the other, as for example,

- through the holes for the sash chains. At

the same time, if any cold air leaks in around the outer seal of either of the sashes, this will not build up an immediate pressure to force cold air into the room, but will be cushioned not only by the space between the 1 showsa face view of one jamb with the 2 is a section sashes shown in section; FigF.

1g. 3 is a secon line 2-2 of Fig. 1, and tion on line 3-3 of Fig. 2.

In these drawings, 2 is the usual tubular jamb having an inner face portion 3 and a portion 4 bent inwardly at a slight bevel. A plate 5 is connected to the jamb tube 2 by a hook 6 and has a portion 7 bent inwardly at a slight bevel corresponding to the portion 4 previously described. A parting strip 8 completes the contour of the inner jamb wall. The general construction of sills and lintels shown here follows approximately the construction shown in my earlier Patent No; 1,549,711 and need not be described here in detail. A plate 9 which extends upwardly from the middle of the jamb is at-v from the bottom of pl: to 9 until it meets the top of casting 11 which connects the jamb with the sill 12.

The upper sash 14 is provided with a plate 15 which extends between the member 4 and the parting strip 8 and is bent over at right angles at 16 so as to extend between plate 9 and parting strip 8. Extending into the tubular j amb adjacent plate 9 is a chain lug 17 which is so ositioned that when the window is closed, this lug will be adjacent the lintel. In the same way, lower sash 18 has a plate 19 the portion 20 bent over at right angles and a lug 21 which when the window is closed will lie adjacent the casting 11. The upper sash 14 can be lowered until lug 17 strikes the top of plate 10 and lower sash 18 can be raised until lug 21 strikes the bottom of plate 9.

When the window is closed, any cold air which passes between portion tand plate 15 of the upper sash will not only be cushioned by the space between parting strip 8 and plate 9 but will also be able to enter the large tubular portion of the jamb 2 which will take up the pressure and will prevent the moisture that may be carried by the air from being blown through into the room; In the same way, any, air which may pass between parting strip 8 and plate 19 will be cushioned and provided, for. Incidentally the weight chains will be entirely concealed and cannot be seen from any position. The window is an inexpensive one to make and yet the parts can readily be removed; for example, the weights 22 and 23 can be removed by loosening the screws which attach plate 5 to plate 9 and removing plate 5. Adjustment can be taken careof by having an enlarged opening 24 in parting strip 8 through which will passscrew 25 attaching the partin strip to both plates 9 and 10.

It is to e understood that the foregoing example is given by way of illustration only and that many. modifications may bemade without departing from the spirit of my invention.

What I claim is:

1. A window-frame and sash construction comprising a jamb having two vertical openings in the members forming the inner face of the jamb, partitions behind said openings, means for preventing air from passing between said openings on the inner side of said partition, a second pair of openings through said partition, one of said openings running up substantially from the bottom of the jamb to the middle thereof, and the other running down substantially from the top of the jamb to the middle thereof, sashes having plates adapted to slide in said first-mentioned openings, and having chain lugs adapted respectively to extend through said second pair of openings.

2. A device as defined in claim 1, further characterized by the fact that the sash plates include portions adapted to contact with.

jamb members back of the inner face of the jamb to limit transverse movement of the sashes.

HARRY E. CAMPBELL.

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