US1062210A

US1062210A - Sheet-metal construction.

Info

Publication number: US1062210A
Application number: US61950611A
Authority: US
Inventors: Morris Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-04-07
Filing date: 1911-04-07
Publication date: 1913-05-20
Anticipated expiration: 1930-05-20

Description

M.- ANDERSON. SHEET METAL CONSTRUCTION. AIPLIGATIONHLED APR. 7, 1911.

1,062,210,, Patented may 20, 1913. l 2 SEEETSSHEET 1.

M. ANDERSON.

SHEET METAL oousmnomom.

APPLIOATIQN FILED APR. 7, 1911..

Patented May 20, 1913 MORRIS Annnnson, or JAMESTOWN, new YoaK.

SHEET-METAL CONSTRUCTION.

Specification of Letters Patent.

Application filed April 7, 1911. Serial No. 619,506.

T 0 e21 whom it may concern Be it known that 1, MORRIS ANDERSON,-

The invention relates to improvements in sheet metal construction, particularly to sheet metal seams; and the object of my improvement is to .provide an interlocking seam which it is practically impossible to open under extreme heat, and the invention consists in the construction and arrangement of the parts and its adaptation to the differentparts of a sheet metal door or window, as described in this specification and shown in the accompanying drawings and pointed out in the claim.

Thehollow sheet metal construction has proved .inadaquate in its fireproof qualities on account of the seams separating or open ing under intense heat or by accident. My improved sheet metal construction as herein described provides a simple, durable construction in which the seams are so locked that they cannot separate, and the door is so put together that it forms a perfect sheet metal fireproof closure for a compartment and it is apparent that this locked seam is applicable to all forms of sheet metal fireproof fittings, including sheet metal doors, windows and the casings for the same.

In the drawings Figure l is an elevation of a sheet metal door. Fig. 2 is a sectional view at line X X in Fig.1, showing the locked seamat each side and the manner of mounting a plate of glass either in the upper part of the door or in a sheet metal window. Fig. 3 is a sectional view at line Y Y in- Fig. 1, showing the construction for holding a sheet metal panel with the improved seam at each side of the stile; and

Fig. dis a similar view showing a modification of the construction shown in Fig. 3 with the locking seam each side of the anel, the locking ends of the seam servmg as a holding means for the sheet metal panel; in most cases this latter form is preferred; and Fig. 5 is a. still further modification of the construction at line Y Y showing the adaptation of the seam construction to a continuous panel and molding. Fig. 6 is .a detail sectional 'view of view of the completed seam after the the separated edges of the-sheet metal as formed to slide together into the improved Patented May 20, 1913..

seam for theabutting edges as shown at line Z Z in Fig. l; and Fig. 7 is a. sectional arts are slipped to ether. Fig. 8 is a sectional View of a doub le or two-way seam for abutting edges, showing the double look upon the same; and Fig. .9 is a sectional view of a single-way seam having 'a double lock; these modifications shown in Figs. 8 and 9 may be used in place of the seam shown in Figs. 6 and 7, to give added security in heavy doors. F ig. 10 is a sectional View at line Y Y showing the use of the seamsthe same as in'Fig. 3, in connecting the molding to the stiles and also showing the.

turned edge locking principle applied to the edges of. the panel sheets, a box being formed in the groove between the moldings to receive said locking edgef Fig. 11 is a sectional view at line Z Z for a doubleway seam for heavy doors to hold the stiles and rails a spaced distance apart; and Fig. 12 is a sectional view at line Z Z of a multiplication of this double seam construction for heavy doors to hold the stiles and rails a fixed distance apart so that they cannot be separated.

Like numerals of reference refer to corresponding parts in the several views.

The numeral 10 indicates the hollow sheet metal stile, thenumeral 11 the molding and looped part 13 and the edge 1 1 of the return bend which enters into the looped portion and forms a seam 15, as shown in Fig. 6', so'that the two may he slipped together,

as shown in Fig. 7 and it is obviousthat when so slipped togetherand placed under heavy pressure the entire seam Wlll be locked in place so that neither accident nor intense heat can force the two edges apart.

For added security in certain kinds, of sheet' metal, a double or two-way seam as shown at 16 in Fig. 8 having the two turned or locking ends is used, or this turned edge of the seam may-be applied to a single-way scam in the double locking form, as shown at 17 in Fig. 9. It is apparent that either of these two-way seams shown" in Figs. 8 and 9 can be pressed into place by means of a'suitable die and press. This locking principle of the turned seam is shown in the also in holding the panel 12 by extending ing stripis formed on one side in its central,

the edges of the sheet metal panel around the outwardly turned ends 18 as shown in Fig. 4:, thereby making the locked seam each side of the edge of the sheet metal panel 12 'in such a manner as to absolutely prevent the separation of the sheet metal panel from the hollow stile 10. This form of construction is preferably used in light doors. For heavy doors the modifications shown in Fig. may beused which applies still further this locking principle at 19. The groove 21 as shownin Fig. 3 is formed with a box at its inner end and the edges 22 of the sheet metal panels 12 are turned in a locking clo sure within said box, said edges 22 stop at each side of the box. 1

1n order to hold and brace the sides of the door a spaced distance apart, particularly in heavy doors, the two-way seam shown in Fig. 8 is preferred, and the lockportion by an extension 2 having a dovetail-shaped end 25. The strip 26 on the opposite side is formed with oppositel placed flanges 27 which form a dove-tai -shaped opening therebetween, into which the dovetail-shaped edge of extension 2 is slipped, thereby holding the two parts firmly in-positionand bracing the sides of the door so they cannot be separated'or changed in their relation to one another.

It also braces these two sides of the door at the point of the abutting seam between the two parts, as for example, between the stiles and cross rails,-which will be recognized as the weakest portion of the hollow door construction. The locked seam is also used for the connection of the molding to the stiles in holding the glass panels 28 in which construction the moldin is formed for one side only and a loose mo di 29 is attached by a suitable screw 30 within the angle on the opposite side of the glass 38, as shown in Fig. 2.

It is obvious that all of these parts may be easily formed with suitable dies and slipped together into the forms shown, and when so slipped together may be spot j wu al.deel or acetylene welded if so desired. I claim as new:

,In a sheet metal door, stiles and cross rails, oppositely placed seams on the opposite sides of the door to connect said parts having inwardly and. oppositely turned edges, a binding strip fitting over said oppositely turned edges to hold the same, the edges of said seams turned in angular flanges to lock the same against withdrawal, said binding strips having grooves bent therein, and a strip of metal'fitting within said grooves on the oppositely placed binding strips to hold said parts a spaced distance apart.

In testimpny whereof I have signed my name to this specification in-the presence of two subscribing witnesses.

MORRIS ANDERSON.

Witnesses:

ARTHUR OuMonsm, CHARLES H. WIBORG.