|Publication number||US484401 A|
|Publication date||Oct 18, 1892|
|Publication number||US 484401 A, US 484401A, US-A-484401, US484401 A, US484401A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (3), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
(No Model.) 3 Sheets-Sheet 1.
J. B0LT0N. SEWING MACHINE STAND.
N0. 484,401*. Patented 001:. 18, 1892.
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(No Model.) 3 Sheets-Sheet 2v.
J. BOLTGN SEWING MACHINE STAND.
No. 484,401. Patented Oct. 18, 1892e (No Mode'l.) 3'SheetS-Sheet 3.
J. BOLTGN. SEWING vMACHINE STAND.
No. 484,401. Patented Oct. 18, 1892.
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UNTTED STATES PATENT OFFICE.
JAMES BOLTON, OF CHICAGO, ILLINOIS.
SPECIFICATION forming part of Letters Patent No. 484,401, dated October 18, 1892. Application led February Z9, 1892. Serial No. 423,144. (No model.)
To all whom it may concern.-
Beit known that I, JAMES BoL'roN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sewing-Machine Stands, of which the following is a speciication, reference being had therein to the accompanying drawlngs.
My invention has for its object to provide a simple and effective mechanism whereby a sewing-machine may be properly supported on its stand and may, when desired, readily be lowered beneath the table of the latter, so as to be out of the way and to enable the table to be used for other purposes. To this end I mount the sewing-machine on a vertically-movable frame or support, (which is adapted to serve as a support for the oil-pan if made in skeleton form, or as the oil-pan itself if made solid,) and to which the sewingmachine may be hinged in any suitable manner, so as to be turned up for access to the parts beneath the bed-plate. To this machine-support is attached a bracket, to which are jointed a lever and a link, both of which are pivoted to the side frame of the machine, and to the said lever is attached a counterbalancing-spring of proper strength to nearly or fully counterbalance the weight of the sewing-machine, and therefore permit the latter to be raised and lowered with ease.
In the accompanying drawings, Figure 1 is a side view, partly broken away, of a sewingmachine stand with the sewingmachine thereon, embodying myinvention. Fig. 2 is a crosssectional view of the same. Figs. 3 and-l are detail views of the machine-support and the sustaining devices therefor.
A denotes the sewing-machine stand, of any suitable construction, having at its top a table portion a.
B denotes the sewing-machine, adapted to be sustained on the stand in operative position, as shown in full lines in Fig. l, or to be lowered beneath the table of the stand, as shown in dotted lines in said figure. The machine B is suitably sustained by a support C, which, if made in skeleton form, as more clearly shown in Fig. 3, is adapted to receive a sheet-metal oil-pan, or if made solid or of a thin web of cast metal will itself serve as the oil-pan. To deaden noise, suitable packings of rubber or other soft material c', Fig. 2, may be interposed between the ribs of the bedplate of the machine and the support C, and the machine bed-plate may be jointed to the said support by means of hinges c2 to permit the machine to be turned up for access to parts beneath the bed-plate.
To the machine-support C is rigidly secured a bracket D, to which are jointed a lever E and a link F, the opposite ends of said lever and link being pivoted to lugs ct on the side frame of the stand. The lever E is attached to the upper end of the bracket D, and has beyond its pivotal or fulcrum point a short arm e, to which is connected the upper end of a strong spiral spring G, attached at its lower end at g to the sewing-machine' stand. This spring is of such strength as to nearly or wholly counterbalance the weight of the sewing-machine, so that when it is desired to raise or lower the latter this operation will easily be effected. The lever E and link F are provided with hubs e and f', respectively, so as to afford solid pivotal supports for the same in the separated lugs d of the side frame or leg of the stand. By thus providing the said lever and link with the said hubs by which they are pivoted in the separated lugs d it will be obvious that I secure such rigid bearings as will more properly resist any side strain, and this lateral resistance by which the machine may be solidly supported is augmented by attaching the said lever and link to opposite sides of the bracket D, as shown in Figs. 2 and 3 of the drawings, this means of attachment resulting in greater strength and rigidity than would be secured if the lever and link were both attached to the same side of the said bracket, as will be obvious. The counterbalancing-spring Gr, which is secured to the short arm e of the lever E, is arranged between the vertical ribs or bars o.S of the side frame or leg A, and is thus so placed as to be properly protected and out of the way.
The machine-support C is provided with a rounded portion c3, and the bracket D is provided with a corresponding portion d', having its upper face concaved to tit the rounded portion c3. This construction permits the machine-support and the machine carried thereby to be suitably adjusted on the portion d IOO of the bracket D, so that the machine may be properly leveled, so as to bring it into correct position relative to the table of the stand, and when the machine-support and machine have been adjusted on the supporting-bracket the machine-support is secured in place by means" of the set screw c4, which passes loosely through ahole in the said rounded portion c3 of the support.
From the foregoing it will be apparent that I provide a simple 4construction by means of which a sewing-machine may be so supported on its stand as to be readily raised and lowered. When the machine is in its elevated position, as shown in full lines in Fig. 1, it will be held in place by a suitable latch or springcatch of any well-known form, (not shown,) and when it is lowered to the position shown in dotted lines in Fig. 1 it may be covered over by a hinged leaf a2, which is adapted to be turned over the opening in the table.
Having thus described my invention, I
Y claim and desire to secure by Letters Patentl. The combination, with a sewing-machine stand, of a support provided with a rounded portion, a bracket having a concaved face to fit the said rounded portion, means for securing said bracket to the said support, a lever and a link, both jointed to said bracket and to suitable supports on the sewing-machine stand, and a counterbalancing spring attached to one arm of the said lever and to said stand and of suitable strength to counterbalance the Weight of the sewing-machine placed on said support.
l 2. The combination, with the stand A, provided with lugs a', of the machine-support C, provided with the bracket D, the lever E, and link F, jointed to opposite sides of said bracket and provided, respectively, with the hubs e and f suitably pivoted in the said lugs, the latter being separated from each other, as shown, and the connterbalaneing-spring G, attached to the short arm e of the said lever E and to said stand and arranged between the vertical bars or ribs as of the stand.
In testimony whereof I aix my signature in presence of two witnesses.
JAMES BOLTON. Witnesses:
T. M. CoNPRoPs'r, F. S. FoUsE.
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