US 2411174 A
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Description (OCR text may contain errors)
av. 39, 1946. A. D. SWENSEN ET AL 2,411,174
ARTICLE SUPPORTING APPARATUS Filed July 9, 1945 Patented Nov. 19, 1946 ARTICLE SUPPORTING APPARATUS Albert D. Swensen, Washington, D. 0., and Robert D. Williams, J L, United States Navy Application July 9, 1945, Serial No. 604,000
(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 G. 757) 4 Claims.
This invention relates to article supporting apparatus, and more particularly to an apparatus whereby an article may be supported and immersed in a treating bath, and rotated while immersed.
In certain processes, and particularly in certain chemical processes it may be necessary that in combining a plurality of chemical compounds or elements the reagent vessel be immersed in a bath having a temperature or other characteristic such that it is desirable to avoid the necessity of the operator coming into contact with the bath.
It may also be necessary that the vessel be agitated, as by rotation, to obtain effective mixing of the reagents in the vessel.
An object of this invention is to provide an effective and efiicient article supporting apparatus and particularly an article supporting apparatus whereby an article, such as a reagent vessel, may be supported and immersed in a bath, and rotated while so immersed.
Another object of the present invention is to provide an efficient and effective apparatus whereby a reagent vessel may be immersed in a bath and rotated in the bath without the necessity of an operator coming into contact with the bath.
In accordance with one embodiment of this invention a rigidly supported overhead beam is provided on which two spaced, parallel, channel bars are mounted, the lower ends of which may extend into a suitable bath. A frame is slidably supported by the channel bars so as to be vertically movable between the bars and carries on its upper portion a motor which is drivably connected to a shaft rotatably supported on the frame below the motor. Means are provided on the shaft for supporting an article to be rotated. In operation the article is mounted on the shaft while the frame is in an elevated position, the frame is then slid downwardly to immerse the article in the bath and the motor turned on to cause the shaft to rotate the article in the bath. After the required period of immersion, the motor is turned off and the frame is slid upwardly to remove the article from the bath.
Other objects and advantages of the present invention will be apparent from the following detailed description taken in conjunction with the single figure wherein is shown a perspective view of an article supporting apparatus constructed in accordance with one embodiment of this invention and having its lower portion disposed in a tank. A portion of the front of the tank is broken away for purposes of illustration.
Referring now to the drawing, it will be seen that this apparatus includes a pair of spaced, parallel, supporting standards I, which are substantially vertically disposed and the lower ends of which may be rigidly mounted on a suitable base 2 by associated pedestal numbers 3. A crossbeam 4 is supported between the upper ends of the standards I and is made of a length sufficient so that the lower ends of the two standards I may be, respectively, located outside a tank 5,
and substantially on opposite sides thereof, as shown in. the drawing. The standards I are sufficiently long so that the beam 4 is mounted substantially above the tank. For purposes of illustration, the tank 5 has been shown of rectangular cross section; however, it will be understood that this shape is merely illustrative and that any convenient shape may be substituted therefor. The purpose of the tank 5 is to provide a container for a treating bath.
The supporting structure described provides a rigid support for a substantially vertically dis posed rectangular frame comprising a pair of spaced, parallel, channel bars 6, an upper cross bar 1' and a lower cross bar 8, the upper cross bar 1 being suitably secured to the under side of the cross beam 4, The lower ends of the channel bars 6 extend downwardly into the tank 5 and, as shown in the drawing, may extend substantially to the base thereof, thus positioning the lower cross bar 8 of the channel bar frame along the upper surface of the base of the tank. Grooves Ill are formed in the inner sides of the channel bars 6 and extend the length thereof to receive, respectively, opposite side members ll of a second rectangular frame which is movable relatively thereto and comprises the spaced, parallel, side members I I and upper and lower cross members [2. The outer edges of the members H extend into and frictionally engage the sides of the grooves [0, the tightness of fit being such that while the frame may be slid relatively to the channel bars 6, it will remain in the position to which it is so adjusted by reason of the frictional engagement. Where, however, a positive lock is required, a set screw I9 may be mounted on one of the channel bars 6 and be adjustable to bear against a side member ll of the slidable frame and thereby to lock it in any desired position. Alternatively, a suitable detent mechanism, not shown, may be employed. By employing a locking mechanism the necessity of making the slidable frame frictionally engage the sides of the grooves 10 to retain the frame in position is avoided. The sides of the grooves l0 serve also as guides for the second frame so that the frame may be moved in the plane of the channel bars 6.
A rotatable shaft l3 has its ends suitably journalled in the inner sides of th side members H and is providedadjacent one end with a pulley it, which i suitably keyed to the, shaft. In order to rotate-the shaft 3, a motor 15 is mounted on the upper side of the upper cross member t2 and has a pulley it keyed to the drive shaft ll thereof. A belt l8 drivably connects the upper pulley 16 with the shaft pulley I4. It will be. understood that while th driving connection be: tween the motor I and theshaft I3 hasbeen described as a belt and pulley combination,
where a positive drive is required, it wouldinvolve no departure from the present invention to substitute for the pulleys I l and I6, sprocket wheels, and for the belt l8 a suitable sprocket chain. A number of spring clips 20 are mounted on the shaft [3 to receive and engage an article to be rotatably supported by this apparatus.
-In using the present apparatus, the articles to be, supported by the apparatus, which may be reagent vessels, are mounted on the shaft l3 by the clips 26 while the slidable frame is in its upper position. The frame is then slid downwardly a suitable distance to immerse the article in a bath which may be provided in the tank 5 and the motor E5 is actuated to cause the article to be rotated. It will be understood that rotation need not be continuous in one direction but maybe oscillatory to increase the turbulence in the vessel. After the required period of immersion, and agitation, the motor is stopped, the
slidable frame is slid upwardly and the article is removed.
While but one embodiment of this invention has been shown and described it will be understood that many changes and modifications may be made therein without departing from the spiritv or scope of the present invention.
The invention shown and described herein may be manufactured or used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
What i claimed is:
1. In an apparatus for immersing an article in a tank and for rotating the article while positioned in the tank, a tank, a pair of spaced standards, a cross beam mounted between the upper ends of said standards, a base for supporting the lower ends of said standards, a pair of spaced channel bars mounted on the under side of said cross beam and extending into said tank, a frame slidably supported between channel bars and movable therealong into or out of said tank, a rotatable shaft 'ournalled in th sides of said frame and immersible in said tank when said frame is moved. toits lower, position -means mounted onsaid slidable frame for rotating said shaft, and means on said shaft for engaging and supporting an article.
In an apparatus for immersing an article in a' tank and "for rotating the article While positioned. in the tank, a tank, a pair of spaced standards; a cross beam mounted between the upper ends of said standards, the lower ends of said standards being mounted adjacent the sides ofsaid tank, a pair of spaced channel bars mounted on the underside of said cross beam, the lower ends of said channel bars extending into said tank,.a frame slidably mounted between said channel bars and movable therealong into or out of said tank, a rotatable shaft journalled in the sides of said frame and immersible in said tank when said frame is moved to its lower position, means mounted on said frame for rotatingsaid shaft, and means on said shaft for engaging and supporting an article.
3. In an apparatus for immersing an article. in a tank and'forrotating the article while immersed in the tank, a cross beammounted above the tank, a pair of spaced channel bars extending downwardly from said cross beam into said tank, a frame mounted between said channel bars and slidable relatively thereto, a rotatable shaft mounted between the sides of said frame and adjacent the lower end thereof, means mountedon said framefor rotating said shaft, and means associated with said shaft for supporting an article.
4. In an apparatus for immersing anarticle in a tank and for rotating the article while im-- mersed in the tank, a cross beam mounted above the tank, a pair of spaced channel; bars extending downwardly from said cross beam into said. tank, a frame mounted betweensaid channel bars and slidable relatively thereto, a rotatable shaft mounted between the sides of said frame and adjacent the lower end thereof, means mounted.
on said frame for rotating said shaft, means associated with said shaft for supporting an article, and means associated with said channel bars for locking said slidable frame in position thereon. 1
ALBERT D. SWENSEN. ROBERT D. WILLIAMS, JR.