US1673565A - Soft-wood corner reenforcement - Google Patents

Description

June 12. 1928. 1,673,565

E. HEATH SOFT WOOD CORNER REENFORCEMENT Filed Nov 25, 1927 Patented June 12, 1928. V

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Thisinvention irelatesto timprqvementseinz More particularly it is an object to provide for soft wood closure elements an insert of hard wood at the exposed corners of the soft Wood when the latter is used in inclosure elements, such as door casing or frame construction.

Another objectis to providea reenforcing insert corner strip which will prevent a frame of soft wood such as used in doors from substantially any warping.

In the drawings:

Figure l is an isometric view of a door and door casing embodying this invention.

Figure 2 is an enlarged sectional view of a portion of the door.

Like parts are identified by the same reference characters throughout the several views.

The invention is particularly useful in the manufacture of closure elements, such as doors and door casings, since the corners of the same are exposed and are frequently damaged by engagement withlarticles passing through the door way or opening. More over, it is-desirable that the exposed corners of such closure elements withstand rou h usage so as to maintain the original close t, whereby to dispense with the necessity for the application of facing or weatherstrip ping after a period of usage.

A still further object of the invention is to provide in a closure element a corner re- .enforcement which will not be marred when subjected to ordinary use, and which may, furthermore, be readily matched up with the remainder of the element so that the reenforcement will not be conspicuous. The ineach made of soft wood and the corners are reenforced by strips of hard wood 3. These strips are glued in position in grooves,

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l iv t t iaen qf c s o he! oft oedr w l eg nnaree orner; ia ling a characteristic strength of hardwood may be presented in all exposed edges ofsoft- Wood casing, frames, etc. Furthermore, any tendency whichvthe soft wood may have toward warping will be opposed by the hard wood strips which have less tendency to wards warping than the soft wood. p

While the advantages gained by the in- Vention are mainly those of strength and durability of structure, nevertheless the beauty of thewood is not detractedfromforced as disclosed herein, have the appearance 'of being veneeredand one viewing them will observe a marked and pleasing contrast between the kinds of Wood found in the structure. 1 p

I am aware of the fact that "metal strips may be used in the place of the'hard Wood 3. However, I prefer the hard wood but do not wish to limit all of theclaims to such. Hard Wood is preferred forthe reason that wood reenforced according to this invention may be easily planed or sawed to sizes desired.

Another very desirable result attained by this invention is observed where the corners of certain woods are reenforced as disclosed herein. It is well known that such woods as fir, spruce, etc. are very apt to sliver at cor ners alongthe grain of the wood. Where such woods are reenforced at corners with strips of wood as specified herein, the grain of the wood is not exposed at such corners In fact soft wood frames or casings reen and consequentlyfwill not be damaged by having a wood edgeand face, a longitudinally grooved corner joining said edge and face, an insert of relatively harder material in said groove exposed at said corner and projecting beyond the edges of the groove, said insert having surfaces disposed in substantially the planes of the wooden edge and face of said closure element whereby to merge with said edge and'face.

.2. A closure elementformed of wood and having a wood edge and face, a longitudinally grooved corner joining said edge and face, an insert of relatively harder wood in face joined by a longitiidinally"grooved corner, an insert of relatively harder wood in said grooveexposed at said corner and pro jecting vbe yond'the edges of the groove, said insert having surfaces disposed in substantially the planes of the wooden edge and face of the door whereby to merge the said edge and face.

4. In combination, a door receiving member of relatively soft wood having a strip of relatively hard wood insert along a wear receiving corner and having an abutment against which the door closes, and a relative- ]y soft wood door having a protecting strip of relatively hard wood insert along a corner facing said abutment when said door is closed, whereby slivering or marring of the door' and frame is prevented.

EARL HEATH.

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