US1922860A - Compensating astragal - Google Patents

Description

Aug. 15, 1933. J F. POWELL 1,922,860

l COMPENSAT ING AS TRAGAL Filed 001;. 16, 1931 .f 1 J/ zz i@ ZN VENTO?? ORIT/EY Cil " purposes of such automatic exit devices.

Patented Aug. 15, 1933 UNiTsxo STATES PATENT oFFlce:

i Application October 16, 1931. SerialvNd 569,153

1 Claim.

This invention relates generally to doors and more particularly to a compensating astragal therefor.

In doors, particularly such as are used in theatres, churches, schools, and other places where large gatherings of persons occur, it is desirable that the doors swing freely wtllout,v how-V ever, having large space between the stiles of the doors when the latter are closed. Such doors are 'generally equipped with rire and panic exit devices and open automatically when pressure is applied thereagainst. However, if such doors are iitted closely, they are liable to bind and stick when the wood expands, thereby defeating the On the other hand, if allowance is made for expansion, comparatively large space is left between the two door sections and cold air is thus permitted to enter the building and the appearance of the door is impaired by the unsightly large spaces.

It is the object of the present invention to provide a door having a compensating astragal which can be adjusted relatively to said door so as to maintain at all times the necessary operating clearance between the meeting edges of the door sections, the variations in the widths of the doors produced by expansion or shrinkage of wood being compensated for by the adjustment of said astragal.

` Other objects of the invention are to provide a device by means of which the astragal can be supported on the stile or" a door at a plurality of spaced points, said devices being adjustable to move said astragal relatively to said stile, there by maintaining the required operating clearance between said astragal and the adjacent member and eliminating all danger of binding of the door.

Additional objects of the invention are to provide a compensating astragal which is adjustably supported by and engageable with a stile of a door and which can be adjusted to compensate for the variations in widths produced in the door by the shrinkage and/ or expansion of wood from which the door is made.

With these and other objects in View, my invention consists in certain novel features of construction and arrangement of parts, hereinafter more fully described and claimed, and illustrated in the accompanying drawing, in which- Figure l is a large horizontal cross section taken through the stiles of two cooperating doors.

Figure 2 is an edge elevational View of a door equipped with my compensating astragal.

Figure 3 is a vertical cross section taken on line 3-3 of Figure 1.

i Referring by numerals to the accompanying drawing, l@ and 11 indicate doors which are arranged in cooperativerelation and which are mounted to swing in the directions indicated by arrows in Figure l. DoorV is provided with a stile 12 which has fixed to its outer edge an astragal 14. Door l1 has a stile 15 on the outer edge of which is mounted a compensating astragal 16.

The opposed faces A` of the astragals` consist each oi a portion B which are `disposed parallel to each other and a portion C which are disposed obliquely to the plane oi the respective portionB. Portions B of the astragals can be arranged in close proximity to each other so as to reduce the space therebetween to minimum and portions C provide the necessary operating clearance to permit swinging movements of the door.

Both astragals are substantially alike in external appearance and in cross sectional contours. They are both substantially channel-shape in cross section, having parallel portions 14a and 16a, respectively, which overlap the edges of the corresponding Stiles.

Astragal 14 is made fast to stile 12 but astragal 16 is adjustably mounted on stile 15 by means oi compensating devices 17. These latter are arranged in spaced relation throughoutv the height of said astragal, as shown in Figure 2, where four of said compensating devices are illustrated.

Each compensating device consists of a plate 18 iixed to stile l5 and having a threaded opening 19 and a screw 20 iixed to astragal- 16 and engaging said opening 19 of plate 18.

The edge of the stile is provided with recesses or pockets 21 of suiiicient depths and each plate 18 is arranged in the bottom of each pocket and is secured in position by screws 22. Extending inwardly Vfrom each pocket coaxial with opening 19 of the respective plate 18 is a bore 24 which is of larger diameter than that of opening 19 and receives the end of screw 22.

The head a of said screw is arranged in a cupshaped member 25 which is countersunk in the face A of astragal 16. Thus the annular edges of cup members 25, as well as the heads 20a, are disposed below the plane of said face and do not interfere with the operation thereof.

Cup member 25 is provided in its bottom with an opening 26 and that portion of the astragal between the bottom of member 25 and the inner face D of the astragalis provided with a bore 27 which is arranged coaxially with said opening 26. Both of these openings are preferably larger than the diameter of screw 22 and the latter extends therethrough into engagement with plate 18.

Bearing against face D is a washer 28 having an opening of sufficient diameter to clear screw As the compensating astragal can be easily ad justed the desired clearance between the astragals of the doors can be maintained at all times.

While I have shown and described herein the 5 20. A nut 29 is screw-threaded on said screw and preferred form of my invention, it is obvious that 80 bears against washer 28. This nut is locked various changes in the construction and arrangeagainst accidental rotation by a lock washer 30 ment of parts of my compensating astragal can and a lock nut 31. Lock Washer 30 is placed bebe made and substituted for those herein disclosed tween said nuts and when lock nut 31 is drawn without departing from the spirit of my invention.

tight said nuts 29 and 31 are held against rota- I claim: 85

' tion with respect to screw 20. Thus said screw is In a door construction, the combination with a locked against longitudinal movement with rewooden stile having a plurality of spaced inspect to astragal 16 but is permitted rotative wardly extending pockets formed in its outer edge, movement relatively thereto. When ther screw of an astragal matable with the said outer edge 20 is rotated by the engagement of head 20a, and perforated withaseries of perforations regis- 90 said screw is moved longitudinally relatively to trable with the stile pockets, a corresponding pluthe stile by virtue of its engagement with plate v rality of metal cups embedded in the outer ends 18, thereby adjusting the astragal 16 toward or of the astragal perforations, a corresponding plufrom the stile 15, depending on the direction of rality of screws journalled in the astragal perfora- 20 rotation of nuts 20a. In this manner, astragal tions and axially fixed relative to the astragal, a 95 16 can be adjusted so as to maintain proper relacorresponding plurality of threaded elements one tion with the fast astragal 14 without the necesmounted in each of the stile pockets and adapted sity of rehanging the door. The variations in to mate with the threaded inner ends of the width produced in the door by the shrinkage `of screws, each of said screws having a non-circular wood can be readily compensated for by the adouter end of less diameter than the internal diam- 100 Justment of said astragal 16. eter of the adjacent cup and an axial extent no The compensating astragal is of the same apgreater than the cup depth. pearance as the fast astragal and consequently JOHN F. POWELL. does not detract from the general appearance of 30, the door.' The adjusting devices 17 are not con- 105 'J' spicuous and are not visible when the door is closed.

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