US112739A - Improvement in wash-boilers - Google Patents

Description

' anni effin.

HENRY R. v ROBBINS, OF BALTIMORE,v MARYLAND.

Letters Patent No. 112,739, dated March l4, 1,871.

IMPROVEMENT IN WASH-BOlLERS.

The Schedule referred to in these Letters liatent and making part of the same.

ing drawing making a part of this specification, in.

Figure 1 is a sectional elevation of' the boiler;`

and l Figure 2 is a sectional elevation of the central trap.

' This invention relates to that' class of vwashboilers in which the water enters a'trap 'placed at the middle of the bottom of the boiler, and is thereby conducted through the bottom .to pipes branching off from the trap, passing upward throughthe bottom, and opening into the boiler at each end of the latter, at points near its top, by which arrangement the water iu the boiler is made to flow in continuous circuits through the trap and pipes.

The invention consists in a cylindrical trap for the aforesaid purpose, provided with holes in its gouter shell for the admission ot' water, and with a series of circular concentric partial partitions, which divides its interior into annular chambers, opening one into another, aud, while admitting of a free flow of water .into and through the trap,rat thersametime preventing its return into the boiler in any other way than through the pipes provided for that purpose.

The invention lalso consistsin securing a metal plate to the under side of the boiler .by means of nuts, and the shoulders or ends of the elbows of vthe pipes passing through it, said plate standing'off' from the boiler-bottom at a suitable distance to prevent the same becoming so heated as to scorch clothes resting thereon.

-Referring to the drawingc is the boiler.;

b, the trap.

c, the pipes, placed beneath the boiler, and attached at one end to a collar, d, that is fastened to the lower extremity of the trap, and at their other ends to elbows e, that pass upward through the bottom of the boi er. v fare vertical pipes, placed either within the boiler or outside of it, or partly within and partly without the boiler, at the ends thereof', said pipes being con uected at' their lower extremities with the elbows c, and being provided at their upper extremities with elbows h, that turn into a horizontal position, and discharge water into the boiler.

I The foregoing arrangement presents no novel features.

l The trap b consists of a cylindrical chamber, to the outside of which is secored a daring guard, fi, which however, be cast in one piece with it.

prevents the clothes from clogging the holes in the wall of the trap, through which water finds its way to the interior thereof.

Next, within the outer shell of the trap, and ata suitable distance therefrom, is a circular partitionfm, which extends from the top to the bottom of the trap, and has an opening, n, in one side.

There are no holes inthe outer'shell of the trap, opposite the opening n, and, therefore, the` water that Hows between the said outer shell and the partition m, when it reaches the opening n, enters the same.

Next, within the partition m, and concentric therewith, and at a suitable distance therefrom, is a partition, o, the opening e' of which is diametrically opposite the opening n, so that the water which enters at' the latter nds novegress till it'arrives at the openm r.'

lVithin the partition ois a central pipe, s, having an opening, t, diametrically opposite the opening r, so that the water that enters theatter has to How around to the opening t before finding egress.

Entering the pipe s, the water is thereby conducted downward. through the bottom of the boiler tothe collar d.

It will be seen that this arrangement, while it pre` sents no maunerof obstacle to the passage of water from the outside through the trap, eiectually prevents it from passing hack from inside to outside, except through the proper channels-the pipes c f.

vA plate, l, of cast or wrought metal, is attached to the bottom of the boiler in any suitable manner, and stands far enough off from the same to protect the bottom from the heating action of the tire beneath, and thus prevents scorching of the clothes within.

Thel plate l is provided with orifices, through which the trap b and elbows epass when the two latter are made in separate pieces from the plate. They may,

The plate l may be applied to any wash-boiler.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is

l. 'lhe trap b, provided with the external flaring guard i, and with internal partitions of any desired number, and with a central pipe passing down through the bottorn'of the boiler, said partitions and pipe being provided with openings. located with respect'to each other, as described.

2. The plate l, arranged beneath the boiler, and secured between Athe nuts c and the shoulders or ends of the elbows e c, as herein shown and described, tbr the purpose specified.

. HENRY R. ROBBINS.

' Witnesses: p,

SOLON C. KEMON, Trios. D. D. OURANn.

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