Untitled record

Application filed February 19,1895, Serial Ko. 538,960. (No model.)

To all whom it may concern:

Be it known that I, Adolph Henry Bobb, of New York city, in ihe county and State of New York, have invented a new and Improved 5 Metallic Door, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved metallic door, designed for use in dwellings and other buildings, arranged io to combine great durability and strength with lightness, is not liable to warp and shrink as the ordinary wooden doors now in use, and is also comparatively cheap to manufacture, and completely fire proof.

t5 The invention consists principally of two sheet metal plates, formed at their sides and ends with flanges connected with each other, each plate being also provided with flanges projecting inwardly from the walls of the 2o panel apertures, and a central plate connected with the said panel flanges.

The invention also consists of certain parts and details, and combinations of the same, as will be fully described hereinafter and then 25 pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a face view of the improvement. Fig. 2 is a sectional plan view of the same, on the line 2—2 of Fig. 1. Fig. 3 is a face view of one of the panels, with the trimming removed. Fig. 4 is an enlarged sectional plan 35 view of the door seam; and Fig. 5 is a like view of the molding seam.

The improved door is provided with two sheet metal plates A and A', forming the inner and outer faces of the door, as indicated 40 in Fig.'2, the said plates being provided at their sides and ends with integral flanges A²and A³, connected with each other by an inside seam so as to hold the frbnt and rear plates a suitable distance apart. By having 45 the seams on the inside, only a line joint is visible on the outside, and this joint is easily covered up when painting the door. The plates are provided with registering panel apertures A⁴, and each aperture in the plate

A is provided at its wall with an inwardly- 50 extending L-shaped flange A⁵, and similar flanges A⁸ are formed in the apertures of the plate A'. The flanges A⁵ and A⁶ are riveted or otherwise secured to a central plate B, likewise made of sheet metal, and arranged in- 55 side the two plates A and A', as will be readily understood by reference to Fig. 2.

The corners of the panel apertures A⁴ are suitably fitted with trimmings C, made of sheet metal and riveted at their outer ends to 60 the plates A, A',<and connected at their inner ends by seams with the flanges A⁵ and A⁶. The ends of the trimmings or moldings are mitered to present a neat appearance.

In order to render the door completely fire 65 proof, I prefer to fill the interior thereof between the plates A and A' with asbestos or other suitable fire proof material, the latter being filled in at one end of the door previous to closing the corresponding flanges A² 70 and A³.

It will be seen that a door constructed in this manner can be very cheaply manufactured and the several parts easily fitted together to form the door, which is compara- 75 tively light, but very strong, durable and fire proof.