US1446994A - Evaporator - Google Patents

Description

Fehz, 1923. 1,446,994

H. SIEBEN EVAPOR'ATOR Original Filed June l5, 1921 INVENTOR Etf A TTORNEY Henny z'elmsvz.l

HENRY SIEBEN, OF 2'? KOERIER, OF

F l C CITYfMISSOURI, ASSIGNOR OF ONE-HALF T0 LEO E SAS CITY, MISSOURI.

EVAPORATR.

Application led June 13, 1921, Serial To all whom t 'may concern:

Be it known that I, HENRY SIEBEN, citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Evaporators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accomp-anying drawings, and to the figures of reference marked thereon, Which form a part of this specification.

This invention relates to a moisture evaporator, and particularly to clothes driers. One of the objects of the inventionis to provide an efficient, durable and inexpensive means for inducing a current of heated air to circulate in the casing'of the evaporator so as to dissipate the moisture, the moisture laden air being exhausted from the casing, preferably in such manner as to cause a counterflow so that the periodof time that the moisture-absorbing air will remain in the casing will be suflicient to take up a maximum amount of moisture, and thereby economically evaporate the moisture from the clothes or other articles within the casing. This is an important feature because if the time period, due to the fact that the stream passlng from the impeller to the exhaust is too short, the heated air will-be exhausted before it has attained its maximum eiiciency, but by providing for a counterflow, the air may remain in the casing, in

some cases reaching substantially the point of saturation, before it exhausts, thus reduc.- ing the time required to dry ythe articles within the evaporator or casing.

I have also provided means whereby the e'ective arrangement of the casing may b'e varied, the means being shown as consisting of an adjustable' baille which will bend the stream lines of impelled air to any point between two extremes so that if a fractional part of the casing is provided with. clothes, or other articles from which the moisture iS. to be evaporated, the baffle may be adjusted nearer the impeller, but if the maximuin capacity of the device is to be employed then the bae will be adjusted at the maximum distance from the impeller. vThis is also an important feature of my invention.

' In the drawings,

No. 477,049. Renewed January 22, 1923.

llFig. 1 is a perspective View of an evaporator constructed 1n accordance with my inventlon.

Fig. 2 is a vertical, longitudinal, sectional 'View through the same.

F1g. is a fragmentary, perspective view of a unit for heating and impelling the air to be clrculated within the casing, and

Fig. 4 1s a fragmentary perspective view of one end of the drier.

The casing is shown as consisting of a substantially rectangular hollow body havlng a bottom 1,1 top 2, ends 3 and 4, back Wall 5 and front wall 6. The front wall is provided with an opening 7 which may be closed by hinged doors 8 and 8. The par ticular form of the casing, however, may be varied to suit requirements. In the end wall 4 of the casing and near the bottom thereof is` located means for heating the air to be circulated within the casing, and there is also means for inducing the circulation or impelling the air. The air impelling means and the heating means may be constructed in unitary form by providing a removable stove or casing 9, which is substantially rectangular and which may be introduced'- through an opening 10 in the wall 4. The casing 9 is open at its inner end as indicated at 11, the opening being preferably provided with a screen 1 2, as clearly seen in Figs. 2 and 3.V 0n the bottom 1is also shown a rail or support 13, upon which the Casing 11 may rest when it is in its unctional positio The easing 11 is provided with a heat source 14 which maybe a gas burner as' shown or which may consist of otherysuitable means for generating heat. Immediately above the burner, however, 1 prefer to arrange a radiator, which is shown as consisting 'of a sheet 15 with a plurality of upstandmg conical projection-s 1 6 immediately below the tubular portion 17 for the air impeller. The air impeller is shown as a motor driven fan 18, the diameter of which is slightly less than the diameter of the tubular portion 17, there being an air inlet 19 so that air may be introduced through the casing above the radiator-and be directed into the casing of the evaporator. rlhe streamlines of heated air will initially be directed longitudinally of the casing until they strike the arcuate bae20, or 21, resting upon the bottom of the casi when they will bend and be directed it is used, it will be supported above the Afloor of the casing so that some of the an' -will pass beneath it and contact with the baffle 21. When the bail'e '20 is used, the streams of air will be divided so that some of them will be diverting, while the others will pass the maximum distance before being bent upwardly to exhaust through tle opening 22. This is clearly indicated by the arrows in Fig. 2. j

While the evaporator may be utilized for a multitude of purposes, I have shown it as particularly designed for drying clothes and to this end I have shown a plurality of clothes lines, indicated at 23, 24 and 25. Therefore, it will be apparent that the air will be circulated over andI between the garments supported by the lines 23, 24 and 25 before' it passes out through the exhaust 22, and it will also be apparent by refer# ence to Fig. 2 that some of the air issuing from the casing 11 will immediately rise to absorb some of the moisture in the garments, but that the maximum amount will pass longitudinally of the casing and then counter-flow tothe exhaust at the top of the casing, so that the air will remain in the casing the maximum length of time to absorbthe maximum amount of moisture 1 before it exhausts.

The lines 23, 24 and 25 are connected to hooks fastened to the end 3 and to the partition wall 26 (see Fig. 2). The partition Walls are spaced from the Walls 4 so. as to provide an air conduit 27 communicating with the interior of the casing through the opening 28 and with the flue 29 through the opening 22. The opening 10 through which the case 11 is projected into the main casing is covered by a flap 9 which carries the fan motor 18 and is adapted for oompletely closing the opening so that air is taken into the casing only through the air intake port v19, whereby a closed system oli circulation may be provided, or other air may be taken into the heater and the saturated air delivered from the closed chamber according to` position vof the valves or gates 30 and 30. A

In order to accomplish this I have provided two hinged valves or gates 30 and 30', the former of which is adapted to close 0E the opening 22 and the latter of which is adapted to close the opening 22. The valves or gates 30 and 30' are hinged to the pintles or shafts 31 and 32, which` extend through the w-all 6 of the casing and carry segmental gears 33 and 33'; the segment 33' carrying an operating handle or lever 34' `(see Fig. 1).

IIf it is desired to cause the air 'topass through the drier casing in a continuous stream, the valves or gates 3() and 30 will be caused to assume the position shown in Fig. 2 and the handle 34 will be in the position shown in Fig. l. If it is desired to return the air in a closed circulating system through the casing, the handle 34 will be raised, causing the valve or gate 30 to close the opening 22 and the valve or gate 30 to close lthe opening 22. Then the air circulated by theimpeller will pass into the casing, through the opening 28, down the conduit or flue 27, through 19 and back through the impeller in a continuous closed circulating stream so that its temperature will 'be raised by passing it repeatedly over the heating element and thereby the air within the drier casing can be raised t a relatively high temperatureI so as to more quickly drythe clothes than would be possible Where the How of the -air is continuous from the inlet end through the liuc 29. y

It will be apparent that the clothes or other articles from which the moisture is to be evaporated may be conveniently placed within the casing and that the casing can be closed so as ,to protect the contents from dust, dirt and other extraneous matter during the drying process, and that an eiiicient, simple and inexpensive evaporator may be provided.

What I Aclaim and desire to secure by Letters-Patent is:

1. An evaporatorl comprising a casing having an air inlet and an air outlet, means within the casing for heating the air, an impeller for directing the air in a stream line, and a baffle adjustable toward and away from the impeller to bend the stream line to cause a counterflow of the air within the casin 2. inhevaporator comprising a casingy having an air inlet at one end and, anair outlet at the same end and above the air inlet, means adjacent to the inlet for heating the air, an air impeller for directing the heated air longitudinally of the casing in a stream line, 'and means for bending thestream line of air upwardly to cause it to counteriiow through the exhaust opening.

3. Anevaporator comprising a casing having an air inlet and an air outlet, means adjacent to the inlet for heating the incoming air, said means comprising a heater and a radiator above it, an impeller above the radiat'or for directing the incoming air lonlthe second mentioned casing, and an air impeller carried by ythe second mentioned conduit in one end of the casing, the casing 4casing for directing the air longitudinally having -an air inlet opening into the conofthe irst mentioned casing. duit, an exhaust flue having its inlet end 5. An evaporator comprising a casing connected tothe conduit, the conduit having 15 5 having an air inlet and an air outlet, means lan air inlet from the casing and an` air for heating the air' entering the casing, and discharge into the casing, and valves for means for simultaneously closing the air inclosing the first namedA inlet and the inlet let and the air outlet, said means also being to the flue. l v eiective to simultaneously open the air inlet In testimony whereof l aiiiX my signature. 20 10' and air outlet.

6. An evaporator comprising a casing, a HENRY SIEBEN.

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