US1217939A

US1217939A - Stove-frame.

Info

Publication number: US1217939A
Application number: US10284416A
Authority: US
Inventors: Evan Harter
Original assignee: DETROIT STOVE WORKS
Current assignee: DETROIT STOVE WORKS
Priority date: 1916-06-10
Filing date: 1916-06-10
Publication date: 1917-03-06
Anticipated expiration: 1934-03-06

Description

E. HARTER.

STOYE FRAME.

APPLICATION F|LED1UNE10.1916.

1,217,939. f Patented Mar.fs,1917.

f 1 STATES PATENT OFFICE.

EVAN HARTER,. F DETROIT, MICHIGAN, ASSIGNOR T0 DETROIT STOVE WORKS,.OF

. DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

Specification of Letters Patent.

STOVE-FRAME.

Patented Mar. 6, 1917.

-Application led .Tune l0, 1916. Serial No. 102,844.

and State: of Michigan, have invented certain new and useful Improvements in Stove- Frames, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to stove frames, and it is the object of the invention toform the structure from sheet-metal, vas.hereinafter l set forth.

' outwardly-extending In the drawings: 'gure 1 is a, plan view of the frame.7 v Fig. 2 is 'a' sectionaly perspective view Fig. 3 is a plan view, showing the manner of cutting the bar to form a corner and Fig. 4 is a section on line w- Fig. 2,

showing the manner of securing the corner.

In the present state of the'art it is usual` -to form the supporting base frames for sheet-metal stoves of angle bars or other rolled bars ofv structural shape. As the frames are of annular form and'usuallyrectangular, 4it is necessary to make special provision for the forming of the-corners, by providing either corner brackets for j oini'rig separate sides or other means. I have plied the construction b forming a b a'i of structural 'shape from olded sheet-metal, and by forming a frame of this bar without the necessity of additional corner brackets. 1

In detail, I preferably form the bar of a T-section, havmg the head portion of the T arranged in a vertical plane and the Stem..

portion extending laterally. This T is formed by folding sheet-metal, with an outer ply A, returnbent portions Band B and arallel portions C and- C', with a return end or seam D for joining their outer ends. To v form the frame, the stem-portion'of the T formed by the parallel plies C and C is gered or c ut away at the corners, as indicated at E Fig.

- '2. In-a stove, a supporting frame comprising a T-bar formedof folded plies of 3. The "vertical or head portion A is then bent to form the angle, and the lies C and C of the stem are telescopica y engaged with eachother so as to overlap, as shown in Fig. 4. vThe rivet F,A or other securing device may then vbe engaged with the overlapping plies to hold the same fromgdisplacement. With the'kyconstructionas described, the laterally-extending portion of the bar will constitute a seat orsupport for the superstructure, and theoverlapping portions of "thefsheet-metal"which are secured to each other -greatly strengthen the corners. Thisv overlapping does not produce any objec- .4

tionable offset in the plane of support for l the superstrupture, as the gage of the single ply ofsheet-metal i-s comparatively slight; and furthermore if desired, the metal may be slightly deiiectedtgbrin'g thefupper lies as indicated in Fig. What I claim as my invention is:l

1. In a stove, a supporting .frame comprising a bar of structural shape, formed of folded plies of Sheet-'metaLthe laterally-exof adjacent sides into exactly the p ane,

tending portion of said' bar being cut at the corners and the plies thereof overlapped.A

sheet-metal, the head portion of the T extending in a vertical plane and the stem portion extending laterally, said stem portiony beingcut at the corners of the frame and having the plies thereof overlapped.

3. In a stove, a supporting frame comprising a T-bar 'formed of folded plies of sheetmetal, the head portion of the T being arrangedina vertical plane and the 'stem portion extending laterally, said stem portion being cut to form a corner, with the plies thereof overlapped, and securing means for said overlapping plies.

4. In a stove, a supporting frame comprising a T-bar formed of folded pl-ies of sheet-metal, the head portion of the T being arranged in v a' vertical plane and beingl formed from a center of the blank which is an overlap, amil4 means 'for securing said 'f returnbent at opposite edges thereof, and plies to each other. 13 l the ,stem portion of the T extending laterally VIn testimony whereof I aiix my signature. Y and 'formed by parallel portions of the EVAN HARTER L 5' b1ank,seamed together at their outer edges, seid stem portion being out to permit of Witnesses:

l folding the heed.- to form a corner, and the WILFRED MERTON,

pljesfof the web being interengagedto form FRANK WELBON. v.