US1051146A - Window construction. - Google Patents

Description

B. S. MGCLELLAN. WINDOW CONSTRUCTION. APPLICATION FILED 11141.12, 1910.

Patented Jan. 21, 1913.

' ggf BENJAMIN S. MCCLELLAN, OF CHICAGO, ILLINOIS.`

WINDOW CONSTRUCTION.

Speccation of Letters Patent.

Patented aan. 21, i913.

Application led April 12, 1910. Serial No. 555,106.

`To all whom t may concern Be it known that I, BENJAMIN S. Mo- 'CLELLAN, a citizen of the United States, and residing at Chicago, in the count-y of Cook and State of Illinois, have invented a new and useful Improvement in Window Constructions, of which the following is a complete specification.

Heretofore in cars having metallic window frames it has been customary toprovide the racks for the sash locks by formingY apertures in the inner or rear walls of the guideways, into which apertures the lock bolts project to hold the sash in adjusted position. Such construction is objectionable for the reason that the apertures must be formed with great 'accuracy to vprevent the bolts from lateral movement therein, since if they are not so formed the sash will rattle in the guideways. Also, when theapertures are formed with a downward and lateral incline for the lock bolts, so that the gravity of the sash may be utilized toforce the sash against the stops, it has been found that the metal in which the apertures are formed is usually so thin that excessive wearY i's caused bot-h on the incline and on the bolts. Furthermore, to punch the'apertures is an expensive operation, requiring great care and skill in order to turn out a marketable product.

The main objects of the invent-ion are to provide a metallic Window construction having a rack bar in each guideway, which rack` bars are secured to the inner wall of the guideway, and protrude from said wall into the guideway toward the sash; to provide a metallic window construction having relatively deep guideways for the .sash to permit the insertion of the rack bars between the edges of the sash and the rear of the guideways; to provide a metallic window construction in which the locking bolts are afforded a broad bearing surface, and the necessity of aperturing the frame to receive the locking bolts is entirely obviated; and to provide a window construction adapted to prevent or absorb the noise usually caused by the sash lock bolts fwhen the sash is being raised.

A specific construction embodying the invention is illust-rated in the accompanying.

drawings, in which:

Figure 1 1s a fragmentary, horizontal sectlon of a window construction embodied 1n .for the sash lock.

this invention. Fig. 2 is a fragmentary view, partly in section, looking into the guideway for the sash. Fig. 3 is a fragmentary side elevation of the rackbar, looking from the outer side of the window. Fig. 4 is a fragmentary, horizontal section of a slightly modifiedform of window construe t1on.

In thejconstruction shown the metallic windowframe 1 is formed to provide an integral outer stop 2, and a comparatively deep guideway 3 for the sash 4. One side `wall of the guideway is formed bythe edge or side 5 of the stop 2, and the rear or inner wall 6 of the guideway is integrally con nected with the stop 2 and is spaced a considerable distance from the edge of the sash 4.

The inner window stop 7 is bolted to the 'post 8 and forms the other side of the guideway. The side of the stop 7 adjacent to the guideway is beveled at 9, and the angle bar 10 has one flange secured between the stop and the post, and the other flange lies flat against said beveled surface 9. A flexible weather strip 11 ,is secured at one edge to the edge of the s`ash by means of a T bar I 12 and its free edge overlaps the adjacent flange of the bar 10 and bridges over the joint between the sash and the stop 7. The flange .13 of the face of the sash, and the flange 14 extends along the edge 5 of the stop 2, and together with the flange lil-provides a bearing surface or wear plate to protectthe sash from wear against the stop.

Rigidly secured to the inner or rear wall 6 of each guideway and projecting into the guideway from said wall is the rack bar 15 Said rack bar may be of T bar overlaps the outer.

any preferred form but preferably it is provided with. downwardly and laterally inclined shoulders 16 upon which the bolt 17 of the sash lock rests when the bolt is in locking position, and which, by reason o the gravity of the wear plates on the sash firmly against the stop 2. Beneath each of said shoulders, with the exception of the two lower ones, is an inclined surface 18 on the face of the rack adjacent to the sash. Said inclined surfaces 18 extend from the rear port-ion of the rack bar forwardly toward the sash `and act to retract the lock bolts 17 when the sash is raised. Above the lower shoul f 10o sash, act to force the,

der 16 is a .shoulder 19 4against :which 'the;

of screws 20 which extend through the wall 6 and into the post.

For the purpose of deadening the noise which would be occasioned by the lock bolts 17 traveling vover the beveled surfaces\18 when the sash is being raised, especially in" vmetallic window constructions, a strip of felt, rubber or other suitable material 2l is placed between each rack bar and the wall 6 of the guideway. The strips serve to absorb the sound and prevent unnecessary noise. V

If preferred-the anglebar .22 may be lemployed to secure t-he weather strip 1l to the sash, as shown in: Fig..4, in which case the stop .'2ris constructed of sulicient depth to overlap. the edge of thefsash', and one flange*l of the angle'bar provides thewear plate for the sash.

By attaching .the rack-bar to the inner wall of the guideway for the sash and form.

-metallic window frame having a guideway ing the guideway deep enough to permit the rack to lie intermediate the wall and the edge of the sash, the construction of-metallic frames is greatly simplified and cheapfened. Furthermore a much broader metallic bearing for the lock bolts can be obtained' by the use of rack bars than can be obtained' where the wall 6 of the. guideway isaper-- tured to receive the bolts,\since the metal forming such Wallis usually comparativelythin.

Obviously many details of the form and construction shown may be varied without departing from the scope of the claims.

1. A window construction, comprising a window frame having a guideway therein, a wooden sash, a rack bar consisting of a fiat metal strip locatedv in said guidevvay and secured fiatwise to the inner Wall of said guideway in spaced lrelationto the side walls thereof, a metallic member secured to the edge of said sash facing said guitleway and provided with a laterally extending in tegral flange constituting a-wear plate projecting into said guideway and adapted to bear against one of the slde Walls thereof, the edge of said iange terminating in the space between the rack bar and the side wall of t-he guideway, and a locking bolt mountseat on saidinclined on the sash and adapted to engage said rack bar.

2. A lwindow construction, comprising a window frame having a guideway therein, a ,Wooden sash, a metallic member secured to the edge of said sash 'facing said guideway and provided with a laterally extending in wise to the inner wall thereof, said rack bar being provided' with -a plurality of lon-gitu-l dinally spaced notches or openingsextend- 4ingthrough the edge. of said rack ybar adjacent the side Wallvof the guideway-in contact with the said wear plate, said notches forming shoulders inclined outwardlyand ydownwardly toward the wear plate, and a locking bolt mounted. on the sash adapted to shoulders for holding the'wear plate in .close contact with the side Wall of the guideway.

3. .A window construction, comprising` a therein, awooden sash, a fiat metallic member secured to the edge of said sash facing said guideway. and provided at one end with a transversely extending integral flange constituting a wear, plate for said sash, one part of said flange projecting intol .said gudeway-and adapted to bear against Yone ofthe sidewalls thereof and the OppO- site -pa-rt. ofI said-,flange overlapping the outer face of the sash, a' flat metal strip constituting a rack bar located:y in said guideway and secured flatwise to1 thefginner. wall v thereof, a strip of felt interposed between. said rack bar .and the inner .Wall of said .guideway, a

locking bolt mounted on said sash and adapted to engage said rack.. bar, and a .weather strip secured to said-sash between said flat'metal memberand the edge of the ,same and having its free end bearing against' the'v side Wall. of the guideway opposite the wear plate.

In .testimony whereof I have hereunto subscribed my name in the presence ofV two Witnesses.

BENJAMIN S. MCCLELLAN- l Witnesses: A

`W. W. WITHENBURY,

JennT CoRWIiv.

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