US747666A - Die for making hollow sheet-metal window or other sashes. - Google Patents

Description

No. 747,666. PATENTED DEC. 22,1903.

F. VOIGTMANN & S. H. POMEROY.

DIE FOR MAKING HOLLOW SHEET METAL WINDOW OR OTHER. SASHBS. v

' APPLICATION rum) nov.12. 1902.

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APPLICATION FILED N0V.12.1902.

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I PATENTED' DEC, 22,- 19031 F. VOIGTMANN & S -I. POMEROY; I DIE FOR MAKING HOLLOW SHEET METAL WINDOW OR OTHER SASHES.

APPLICATION FILED N'0V.12. 1902.

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' UNITED STATES Patented December 22,1903.

PATENT OF ICE.

FRANK VOIGTMANN, OF CHICAGO, ILLINOIS, AND SILASH. POMEROY,'OF I NEW YORK, N. Y.

' DlE FOR MAKING HOLLOW SHEET-METAL WINDOW OR OTHER SASHES.

SPECIFICATION forming part of Letters Patent No. 747,666, dated December 22, 1903.

Application filed November 12,1902. serial No. 131.044. (N o modeLl To all whom it may concern:

Be it known that we, FRANK VOIGTMANN, of Chicago, Illinois, and SILAS H. POMEROY, of New York, State of New York, both citizens of the United States, have jointly invented certain new and usefullmprovements in Dies for Making Hollow Sheet-Metal Window or other Sashes, of which the following is a specification.

Our invention relates to the manufacture of hollow sheet-metal window-sashes, such as are commonly employed in fireproof and other buildings, and has for its primary object to provide meanswhereby a hollow sheetmetal sash may be produced with. a minimum number of parts and without seams or joints at the corners.

Another important object of the invention is to cheapeu the cost of production of such articles. j

lhese objects we attain through the use of novel and improved means for their manufacture in the nature of a die which is capable of stamping from rectangular sheet-metal blanks the inner and outer face members of the sash in integral forms, respectively, and requiring only to be suitably connected or united at theirinner and outer meeting edges.

A die embodying the principle of our invention in the best form we have as yet devised is illustrated in the accompanying drawings, wherein- Figure l is a plan view of the top or'movable member of the the. Fig. 2 is a similar plan view of the bottom or stationary member of the die. Fig. 3 is an enlarged crosssectional detail view through the mating im-v pression members of the die and their bedblocks, showing said members in registration with a sheet-metal blank stamped to its in- Fig. at is a fragmen'tary detail view, in vertical section, through. one of the bed-blocks, illustrating the means for securingand adjusting the impression members on their supporting-blocks. Fig. 5 is a side elevation of the upper movable 01' stamping member of the die. Fig. 6

is a similar view of the lower stationary or.

forming member. Fig. 7 is a plan view of the integral rectangular sheet-metal blank designed to be acted upon by the die. Fig.

bore of the die.

fect joint at the mitered corners, by

8 is an enlarged cross-sectional view through companion members of apair of matingblanks stamped and assembled preparatory. to their permanentassociation in a sash structure, and Fig. 9 is a similar cross-sectional view through one member of a completed sash.

In carrying out our invention we provide a pair of preferably rectangular bed-blocks l0 and 11, constituting the supporting and carrying elements of the top and bottom mem- The bed-block 10 is provided on its under surface with a series of longiv tudinally and transversely disposed undercut grooves or channels 10, and the bedblock 11 is similarly'provided on its upper surface with a corresponding series of longitudinally and transversely extending undercut grooves 11. The upper bed-block 10 may be mounted on the lower end of any suitable actuating means, such as the stem 12. (Shown in Fig. 5.)

"lheimpression-forming elements of the die members proper are cut from metal bars of uniform cross-sectional dimensions and contour, being'preferablymade from commer-.

cially-rolled steel bars having inter-fitting or mating faces between which the sheet-metal blanks are compressed and shaped. The bar which serves as the lower passive member of the die is cut into four sections with miter-ed joints, the two longer sections (indicated by 13) serving to the two shorter sections '(indicated by 14) serving to form the rails. These elements are arranged to. constitute a rectangular frame, as shown in Fig. 2, and are rigidly secured upon their supporting bed-block 11, with capacity for relative adjustment to secure a perthe following devices: 15 designates margin-hooks dovetailed in the grooves 11 beneath and engaging the under surfaces of the stile-formers 13 and the rail-formers 14:. In order that these margin-hooks may grip their respective rail and stile formers and secure the latter rigidly to the bed-block, the outer projecting ends 'of the margin-hooks are overlaid transversely by clamp-bars 16, which are each provided with an inclined o" beveled inner edge, as shown at 16 in Fig. 3, registering with an inversely-inclined outeredge 13 on the outer form the stiles of the sash and margin of the stile or rail former engaged thereby. At the points where the clampbars overlie the rearward extensions ofthe marginhooks the former are provided with throughslots 16*, Fig. 3, slightly elongated in a direction transversely of the bars, through which slots are passed screw-bolts 17, the lower threaded ends of which engage threaded holes in the underlying extensions of the marginhooks. This construction enables the stile and rail formers to be adjusted into a snug and perfect fit at their mitered corners and to be rigidly secured in such positions by simply turning up hard the screw-bolts 17 after the clamp-bars 16 have been forced inwardly to crowd the stile andrail formers hard against each other at the corners and against the inner abutments of their respective marginhooks, the turning up of the screw-bolts tending to draw the oblique sides of the marginhooks into close frictional engagement with the undercut side walls of their respective grooves, whereby said margin-hooks are securely held against any sliding movement longitudinally of their grooves.-

The upper active member of the die is constructed and assembled in precisely the manner already described in connection with the lower or passive member, with the exception that the elements thereof constituting the immediate impression members are of course cut from a single length of bar that is rolled or otherwise formed with a surface of such a contour or pattern as will exactly register with and interfit the opposed meeting face of thecompanion bar from which the rail and stile formers already described were cut.' In Fig. 1 the stile'stamps are indicated at 18, the rail-stamps at 19, the margin-hooks holding the same at 20, the clamp-bars for the rail and stile stamps at 21, and their adjusting screw-bolts at 22. i

It is desirable to provide in connection with the lower stationary member of the die means whereby the blank may be accurately positioned thereon prior to the stamping operation, and such means may conveniently consist of a series of vertical pins 23, grouped around the two ends and one side of the framed structure constituting the lower stationary element of the die, said pins extend ing, as shown in Fig. 3, to a height slightly above the top surface of the die member and adapted when the members of the die are in operative engagement upon a blank to enter correspondingly-positioned holes 24, formed in the outer marginal p01 'ion of the upper movable member of the die. Said pins and holes are of course so relatively positioned as to register only when the cooperating faces of the die members are also in perfect registration. v

\Ve will now describe the manner in which the die is operated and the completed sash formed from the resulting product of the die. Fig. 7 shows in plan View the integral flat rectangular sheetmetal blank (designated byA) constituting the article subjected to the operation of the die. The upper member of the die being raised to a sufiicient height above the lower stationary member, this rectangular blank is readily inserted in position upon the face of the lower die member with its two end and rear sides contacting the several pins 23, which insures its accurate positioning. Thereupon the upper stamping member of the die is depressed and impinging upon the top of the blank bends and forces the material thereof down upon the stationary impression member, compressing said material between the opposed and mating faces of the impression members, and thus obviously imparting to the blank the crosssectional form of said mating faces, as clearly shown in Fig. 3. The upper die member is then raised, the bent and crimped sash member removed, and another blank inserted and subjected to the same operation. Upon the removal of the second blank the two bent and crimped frames may then be readily assembled intoa complete sash in the manner illustrated in Figs. 8 and 9. To do this, the two stamped members, which are designated by A, are placed in opposed relation, as shown in Fig. 8, and the inner and outer marginal portions of the members are turned inwardly, as shown at aand a, respectively, the extreme inner edges of the inwardly. bent marginal portions Ct being again bent inwardlyat right angles toward each other. as shown at 61*. The companion members A thus assembled and shaped are connected and united into the form of a complete sash through a fiat con uection-strip B, having outwardly-bent marginal portions b, which are pressed into interlocking engagement with the edges a, while the inwardly-bent margins a and their meeting extensions a together constitute a housing for the edge portion of the glass 0 of the sash.

From the foregoing it will be seen that by ourinvention We provide a die which is capa ble of forming up from rectangular integral sheetmetal'blanks the face members of a hollow metal sash, said sash being without transverse seam or joint at its corners, and thus possessed of great strength and rigidity.

It will also be observed that our invention dispenses with the necessity of all special moldings or castings to form the impression elements of the die, since these elements are each constructed entirely from asingle length of rolled bar-steel or other metal cut and mitered into sections corresponding with the marginal members of the sash to be formed thereby. While we have shown and described a die adapted to the prod notion of a simple rectangular sash, yet itwill be obvious that within our invention dies mightbe made of any other form in outline. It is also obvious that the die members may within our invention be formed with coacting faces of any desired or convenient outline or contour.

An important advantageresulting-from the IIO . tive channels.

' plates or blocks resides in member comprising an impression m'e described mannerof mounting the impressionmembers on their respective supporting the fact that the latter are capable of receiving and carrying impression members of widely varying sizes, for which purpose said impression members maybe readily removed and others substituted by simply withdrawing "the marginal clamping-bars and read usting the marginhooks inwardly or outwardly of their respect While we have described the die as con.- sisting of a stationary lower member and an upper movablemember, it is perfectly obvious that, if desired, the upper member might be made stationary and the lower member movable, or both move toward and from each other. 'Hence Within the purview of 'our invention any desired or convenient relative movement may be imparted to the die members.

We claim- 1. Ina die of the character described, a die member comprising an impressionmember composed of a plurality of" sections cnt'from a rolled-metal bar and connected up end to end'toform aclosed frame, a bed-block, and independent devicesfor adjustably securing the respective sections of said'Trame-shaped i pression member to said bed-block.

. In a die of the character described, a die composed of a plurality of straight sections cut from a rolledmetal bar and connected up with mitered endwise-abutting joints to form a'closedframe, a bed-block, and independent clamping devices for adj ustably securing the .respective sections'of said frameshaped'impression member to the surfaceof c said bed -block.

3. In a die of the character described, adie members might be made to the frameshaped impression hooks in said channels and thereby securing said frame-sections in closely-fitting relation to each other. p

4. The herein-described adjustable die for 55 forming hollow sheet-metal window-sashes, consisting of a pair of cooperating die members, each member comprising an impression member composed of a plurality of straight sections cut from a metal cross-sectional dimensions and contour, and connected up with mitered endwise-abutting joints to form a closed frame, a bed-block having its surface provided with channels extending radially thereof, and in directions 65 at right angles to the respective sections of member, inde-- pendent'margin-hooks in the channels of said bed -block embracing said frame-sections, and means securing said frame-sections in 0 the grasp of the margin-hooks and the latter fixed against movement in their respective channels.

FRANK VOIGTMANN.

SlLAS H. BOMEROY.

Witnesses to signature of Voigtmann:

SAMUEL N. Pom), ALBERT H. GRAVES.

Witnesses to signature of Pomeroy:

CHARLES Wmz, CHARLES N. WYSONG.

bar of uniform 6o

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