US1152741A - Process of constructing window-sashes. - Google Patents

Description

M. LACHMAN. PROCESS OF CONSTRUCTING WINDOW SASHES.

APPLICATION FILED JAN. 22. 1915.

1,152,741. PatentedSept.7,1915.

INVENTOR WI TNESSES BY QZM 4/@Z% /WW%W UNITED sTATEs PATENT OFFICE.

MAURICE LACHMANS OF NEW YORK, N. Y., ASSIGNOR TO UNIVERSAL ELECTRIC WELD- ING COMPANY, OF LONG ISLAND CITY, NEW YORK, A CORPORATION OF NEW YORK.

. PROCESS OF CONSTRUCTING WINDOW-SASHE S.

' Specification of Letters Patent.

Patented Sept. 7, 1915.

Original application filed November 15, 1911, Serial No. 660,373. Divided and this application filed January 22, 1915. Serial No. 3,704.

To aZZ whom it may concern: I

Be it known that I, MAURICE LAoHMArI, a citizen of the United States, and a resident of- New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Processes of Constructing Window-Sashes, of which the following is a specification.

y present invention relates to a process of constructing metal window sashes and particularly to. the method of locking the members thereof together at their intersections.

"The object of the invention is to simplify the mode of constructing a window sash whereby the sash can be more quickly made and will be cheaper, simpler and more eflicient than when a mechanical joint is employed. j

With this end in view the invention consists in the improved process of constructing metal sash having locked joints as hereinafter more particularly described and then specified in the claims.

In the accompanying drawings, Figure 1 illustrates a front elevation of a metal window sashconstructed in accordance with this invention, one panel only being shown. Fig. 2 is a rear elevation of the same showing two of the finished joints. Fig. 3 is .a cross-section taken on the line 33 Fig. 1. Fig. 4 is a perspective'view illustrating the manner of assembling the members at the joint.

The complete window structure may be composed of. any number of sash bars or members 1, 2, arranged to intersect each other .at any desired distance apart, each of the members preferably being of a general T-shape in cross-section. The sash members or bars are made of any desired metal, each member comprising a longitudinal web 3 surmounted by a laterally disfposed molding 4 symmetrically arranged with regard to the web 3. The upper surface'of the molding is preferably provided witha longitudinal bead 5. The members or bars are preferably of solid metalrolled orotherwise suitably shaped.

.Ateach desiredpoint of intersection of the members-the molding 4 is mitered at each side of the ..web 3 -by removing a section of the molding as shown at 6. The molding is cut away, when the members are webs or at both. Pre

of the web 3. The miters being disposedalike in each sash member, the operation of providing them is a simple one and may be effected by punching out the parts or cutting them away in any desired manner.

The member 1 is provided with a slot 8 piercing the material of the web 3 in line with the apex of the miter 6 at each joint.

7 The slot 8 preferably starts at the lower edge of the web 3 in the member or bar 1 and extends into the web for any desired distance but-leaving the bead 5 of the member 1 continuous. The member or bar 2 is provided with a co-acting slot 9 similarly located with regard to the miter and which starts at the bead 5, penetrating into the member 2 for such distance that when the members 1 and 2 are fitted together the bases of the slots 8 and 9 will seat on each other, at which time the upper surface of the beads 5 in the members 1 and 2 are located in the same plane and intersect each other as shown in Fig. 1 It will be understood that the slot 9 is just as wide as the bead 5 so that when the members are fitted together the bead 5 will entirely close the opening of the slot 9 and form a smooth upper surface on the finished sash.

The members or bars 1 and 2 are fitted to each other as indicated in Fig. 4 by pressing them laterally toward each other, the miters 6 closely fitting each other, the bead 5 closing the slot 9 and the web 3 of the member 2 fitting in the slot 8 of the member 1.

each other-I weld the two members together at their intersections by means of an extra piece or button of metal and utilizing the electric welding process. The welding may take place at either the upper surface of the joint or at the rear edgaof the intersecting -erably and as herein shown, the welding is effected at the edges of the sash and less trimming or finishing is necessary than if located at the beads 5. To quickly carry into effect the locking of the parts and thus cheapen the construction I preferably cut away a small portion of ioo . of the web portions .3 as this is at the back the continuous web 3 as indicated at 10 in the web of the member 2 at the point where said web intersects the web of the member 1. Over this intersection and in contact with the four edges presented by the slot 8 and cut 10 isplaced a small metal button or disk 11. Electric current is passed from the disk 11 to the intersecting webs 3 by means of suitably applied current-carrying electrodes, the metal of the disk coalesoing with the edges of the slot 8 and out 10 due to the passage of the current and ,pressure applied to force the softened metal together and the button down into the cavity formed in the webs by the cut away portions whereby the two webs are securely 1 welded together and any relative movement of either is prevented. Thegeneral operation and the apparatus necessary to carry out the electric welding of parts is now so generally well known that any more detailed description of this step of the process is thought unnecessary.

It will be understood that the process as specifically described is but the preferred one and that variations of the same may be practised without departing from the spirit .p'i the invention as expressed in the appended claims.

This "application constitutes a division of my application for patent for metal window sash, filedrNov. 15, 1911, s. N. 660,373.

, What I claim as my invention is '1. The process of oining the intersecting members of a metal window sash consisting in providing members having a web portion and a lateral molding, mitering each piolding at the 'place of intersection, slotng the web portion .of each member from opposite ed es, placing the slotted parts in intermeshe relation to bring the moldings n a common plane, placing a separate button over and spanningthe intersection and passing a welding current from one to the other and at the same time applying pressure to force the parts together to lock the members to each other.

2. The process of joining the intersecting members of a metal window sash consisting in providing members having a web portion and a lateral molding, mitering each molding at the place of intersection,- slotting the web portion of each member from opposite edges, placing the slotted parts in intermeshed relation, proyiding' four shoulders in the web at the intersections, placing a metal button in contact with said four shoulders and passing a welding current from one to the other and at the same time applying pressure. to force the button down into the cavity formed by said shoulders.

3. The process of joining the intersecting members of a metal window sash consisting in providing members having a web portion and a lateral molding, m1tering each molding at the place of intersection, yslotting the web portion of each memberJ-from opposite edges, placin the slotted parts in intermeshed relation, orming a notch in the continuous web where it passes through the slot of the other web of January A. D. 1915.

MAURICE LACHMAN.

Witnesses:

F. B. TOWNSEND, REMINGTON Soo'r'r.

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