US1165049A - Metal framing-joint. - Google Patents

Description

H. E. WHITE.

METAL FRAMING J0 INT.

APPLICATION ElLED AUG-26, 1914.

Patented Dec. 21, 1915.

En STATES FATE HERBERT E. warm, or YOUNGSTOWN, onrqnssronon TO THE GENERAL FIRE- rnoorme' COMPANY, or YOUNGSTOWN, 01110, A CORPORATION or 01110.

METAL FRAMING-JOINT.

To all whom itmay concern:

Be it known that I, HERBERT E. WHITE, a citizen of the United States, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented certain new .and useful Improvements in Metal F ramingJoints, of which the following is a specification.

This invention relates to a novel and practical metal framing joint designed to permanently and rigidly unite, in a neat finish, the frame members of metal struc tures employed in fireproof building construction, such as steel sashes and the like.

The'primary object of the invention is to provide a mechanically-interlocked framing joint thatis simple and substantial, and

which may be easily formed and quickly assembled.

It is also the purpose of the invention to provide a construction of joint possessing great strength and rigidity, and one which may be economically manufactured Without sacrificing the advantages of either of these claimed. v

Apreferred andpractical embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of the me-' I tallic frame members of the joint about to be assembled. Fig. 2 is a horizontal sectional view of the joint with the locking tongue closed, the open position of the latter being indicated by dotted'lines. Fig. 3 is a vertical sectional view of the joint, on the line 3-3 of Fig. 2. Fig. 4 is a perspective View of thecompleted joint.

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

With particular reference to the details of construction shown in the drawings, it will be observed from Fig. 1 that the frame memhers of the improved joint are esaaiiiy "5" bars, and that the joint includes a main Specification of Letters Patent.

Patented Dec. 21, 1915..

Application filed August 26, 1914. Serial No. 858,733.

frame member 1 and oppositely 'arranged connecting ,frame members 2 and 3 respectively. I

The main frame member 1 is provided in its body portion 4; with a bendable locking tongue 5 which isfdisplaced from the body to provide a keeper hole 6. The abutment edge 7 of this hole which is opposite, the hinging point of the tongue 5 is preferably cut-away further after the tongue has been punched from the bar-body. This provides an accurate fit at the corners of the joint by leaving enough space between the said abutment edge 7 and the cut end of thebendable locking tongue 5 to accommodate the thickness of the locking elements of the opposite connecting frame members.

The connecting frame member 2 has its bar-body 10 projecting beyond the flange 11 thereof to form a locking ear 12 having therein a key-hole mortise 13 consisting of the end 16 ofthe bar 12. The opposite corners of the ear end 16 are notched as at 17 to permit the saidend 16 to abut with the end shoulders 18 of the bar-body9 of the connecting frame. member 3. Also, the notches 17 interlock with opposite edges of the hole 6 and thus take a firmabutment against one face of the bar-body 4 of theframe member 1 and permit the end 16 of the ear 12 to-be flush with theopposite face of the said barbody, as clearlyshown in Fig. 3 of the draw-' mgs.

A pro ection 8 at one end of the bar-body '9 is formed with a locking tenon 19 connecting with the body by a neck portion 20, thus having a form, as well as dimensions, corresponding to the key-hole mortise 13 with which it registers. In this connection it will be observed that the tenon and'mortise 19 and 13 constitute substantially a dove-tail oint. 1

With the frame 'parts in the position shown in Fig. 1 of the drawings, the connecting frame member 2 is disposed in such relation to the main frame member 1 that the ear end 16 may be placed within the keeper hole 6 so that one face thereof is in contact with the abutment edge 7 of the body a of the main frame member. in this position, the key-hole mortise 13 is arranged to receive the locking tenon 19 of thebar projection S and thus provide the dove-tail joint constituting the interlock between the opposite frame members which meet in the keeper hole or opening 6. The width of the keeper hole is suflicient to permit the tenon l9 topass the end of the ear 12 so "that the former may be pushed into registering relation with the key-hole mortise 13, thereby placing one side of the neck in contact with the abut: ment edge 7 of the hole '6 in the same manner as one side face of the end 16 of the ear 12. When the connecting frame members.

' are thus interlocked, the bendable locking tongue 5 is forced back into alinement with the bar body 4 so that its cut end forcibly out further description, and that minor de-v tails of construction and design may be re-- sorted to without departing from the spirit of the invention or'sacrificin'g any of the advantages of the construction covered by the appended claims.

I claim: a j 1. A metal framing joint comprising a main frame member, including a bar portion provided with an opnin-gformed in it by a bendable tongue, opposite frame members meeting in said opening and interlocked therein by means of a dovetail joint,

said bendable tongue closing the remainder,

of said opening and preventing lateral relative displacement of the opposite frame members. a

2. A metalframing joint comprising a main frame member having a bendable looking tongue displaced therefrom forming a 'keeper hole, and opposite frame members connected by a dove-tail joint disposed within the hole, said bendable tongue having its cut end engaging the lateral faces of the interlocked ends of the connecting" frame members. 7

In-testimonywhereof I hereunto aifix my signature in the presence 'of two'witnesses.

HERBERT E. WHITE.

Witnesses:

' G. R. NAUMANN,

O. D. KAISER.

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