USRE3961E - Improvement in the construction of sewing-machine covers - Google Patents

Description

JOHN JOUNSON, OF HARTFORD, CONNECTICUT.

Letters Patent No. 72,739, dated Decaan-befA 31, 1'867 reissue No. 3,931, dated May 3, 1870.

IMPNROVEMENT `IN THE CONSTRUCTION OFSEWING--MACHINE COVERS.

40.- The Schedule referred to ln these Letters Patent and making part o! the same To all whom it muy concern Be it known that I, J OHN JOHNSON, of the city and county of Hartford and State of Connecticut, have invented certain new and useful Improvements in the .Manufacture of Sewing- Machine Cases; and to enable others skilled in the art to make and use the same,'I will proceed to describe.

Heretofore, sewing-machine cases have been made in simple box form, having four sides, of boards, of equal thickness, secured at the angles or corners by a. dovetail-joint, ruiter-joints, or other connections. These cover-s, thus constructed, frequently warp, spn'ng, or crack, even when made of well-seasoned wood, are often returned to the manufacturer to be repaired, and sometimes required to be replaced by new ones.

" The nature of this invention consists in constructing sewing-machine cases in such a manner that they will not be likely to warp, spring, or crack, and yet will be equally as strong and durable as those now ordinarily manufactured,having a more neat and symmetrical appearance,

and are cheaper of manufacture, and of making the several parts of the cover lu separate, distinct parts, as thc top,l sides, en'ds, and base, all in complete readiness for being pnt together in the most rapid manner when they are wanted for use. v

By this improvement I avoid the dilculty of'those as heretofore manufactured, and also obtain a great and very decided advantage of having a cover which will admit of being packed away, in detached parts, within a very limited space, so as to economize in room and transportation, and also admit-of being pnt together with place, when required.

To effect this I make my cover in the usual form, rectangular, as that probably would be the most desirable shape. The cover is constructed of a frame,

in which panels, which compose the sides and ends of the cover, are inserted, the panels of course being made out of much thinner stuff than the frame, and

all so arranged that the several parts which comprise 'be cover may be in readiness to be put together for use, in the manner described, with thegreatest facility, the panels being fittedloosely in grooves in the inner edges or surfaces of the parts composing the frame, so that saidpanels may shrink without the' liability of splitting, frame, or forcing thecover out of proper pla-cc or shape.

In the accompanying drawings- Figure 1 is a perspective elevation.

Figure 2 is va sectional end elevation.

Figure 3 shows an elevation vof onef'corner of the case. l

Figure 10,011 Sheet B, also shows a perspective vview of the case.

the greatest facility', at any time or and swell without straining the Figures 1, 3, and 8 show a face view of the top, sides, and end of the case, in separate parts.

Figure 2 is a section view of one end.

Figure 4 is a section view of one side.

Figure 5 shows how the corner joint is formed for putting together the sides and ends.

- Figure t3 shows the base, detached from the body of the case, also tongueand-groovc unter-joints.

Figure 7 shows a section of the base, connected to the edge of the case.

Figure 9 shows a side and edge view of one of the rails of the top of the cover, as originally designed.

Similar letters indicate likeparts in each of the figures. Y

rlhe frame of the cover is composed of uprights or stiles, a, of any suitable wood, connected lby horizontal rails or cross-pieces, b.

These Stiles and cross-pieces are properly framed together by tongue-and-groove miter-join ts, or other suitable joints, as shown in lig. 3, at c.

The frame has a' panel, d, fitted within it at each side, the panels bengof much less thickness than the stutf ot' which the parts composing the frame is made. (See figs. 2 and 4.)

These panels are fitted in grooves, e', made in the inner edges of the frame-work or rails and Stiles, as

shown in figs. 2 and 4.

In practice I design to lhave Iall the parts of the cover so made and titted that they may be put together at any time and place, where and when theyv are wanted to be used, without any trouble or dilllculty whatever. By this means I can, in shipping or storing the covers in quantities, have the parts of each cover-disconnected, so that a. large number of covers may be .packed within a small compass on space; and, when they have arrived at their destination, or at any time'aftcr when desired, they may be put together and made ready for use.

In puttingthe several parts of a cover perinancntl y together, 'the stiles and cross-pieces of the frame may be glued in their joints; but the panels (l are not glued in the' grooves formed in the stilesand rails, and the panels, therefore, are allowed to shrink, if they shrink at all, without being liable to check, crack, or split.

The top e of the cover may be constructed similarly' t'o its sides, and tted to the top rails by dowel-pins, or other suitable means.

By this mode of construction I' o btain a sewingmachine cover which is free from thc principal objections atteuding those as ordinarily made, checking by shrinkage being avoided, the covers admitting of being compactly stored or packed for transportation, and having a nea-,ter and more symmetrical appearance than those as now made.

vI am aware that sewing-machine coversl have been made with moldings tacked, glued, or otherwise secured to their exterior surface, so as to imitate paneling or panel work. This, however, although giving to a; cover nearly the same appearance as one conp strueted according to my invention, has none ot' the essential advantages ofthe latter, as the difficulty atl ,tending shrinkage is not avoided, and noV economy efa genera-l thing, I prefer.

Eaeh and all parts of this ease are. prepared, in readiness for being put together, by mnehanism specially adapted for that purpose.

The moldings upon the edge of the cap, the edge of the base, thepanel-groove, the tongue-and-groove bevel-joints, are all formed by rapidly-re'olring eutters. The caps, sides, and ends, in all their details, are first prepared to a gauge or pattern, and the cap, sides, and ends are secured together in forme-rs specially made for that purpose. The body of' the case, when wanted for use, is glued together upon a former ot' one fixed, compact size. This foriner (in size) is made of the length, breadth, and depth required for the inside capacity of the case. This former is eenstrncted Vith keys, or their mechanical equivalents,

`by the loosening of which, after the case is secured together thereon, the former can be easily and quickly removed from the ease.

lhe parts which compose this case are glued and clamped together (the sides and ends) upon this former by means of a box or frame-clamp, havingv screws, or their mechanical equivalent-s, arranged thereon, so as to produee pressure (always in readiness) at a fixed point.

By this process of manufacturing sewing-machine eases I am enabled to produce them with sunken panels, lighter, stronger, cheaper, and more durable than can be done where the)v are vmade of' whole, plain boards.

I believe I have thus shown the nature, construetion, and advantage of this invention, so as to enable a person skilled in the art to make the same therefrom.

Wha-t I claim, and des/tre .to secure by Letters Patent, is

As an artiele of manufacture, a paneled sewinganal` chine case, substantially as described, and made in distinct parts, to store or pack for transportation.

JOHN JOHNSON. [rh s.]

Witnesses: Y

Hormon VaNsaNns, JEREMY \V. BLISS.

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