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Publication numberUS1516802 A
Publication typeGrant
Publication dateNov 25, 1924
Filing dateFeb 14, 1923
Priority dateFeb 14, 1923
Publication numberUS 1516802 A, US 1516802A, US-A-1516802, US1516802 A, US1516802A
InventorsDavid E Wellman, Hubert J Wellman
Original AssigneeDavid E Wellman, Hubert J Wellman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Liquid-outlet pipe
US 1516802 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Nov. 25, 9 4'- 1,516,802

. D. E. WELLMAN ET Al- LIQUID OUTLET PIPE Filed Feb. 14, 1923 mldilumm Page 1 25, 1924.


Application flledlebruary 14, 1823. Serial No. 618,906.

To all whom it may concern: Be it known'that we, DAVID E. WELLMAN and HUBERT J. WEL'LMAN, citizens of the United States, residing at Modesto, county of Stanislaus, State of California, have invented certain new. and useful Improvements in Liquid-Outletwe do declare the following to be a full, clear, and exact description of the 10 same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in sterilizing machines or apparatus, and especially to a type particularly intended for use in dairies, to sterilize the various utensils, containers, e used in the business.

One of the principal objects of our invention is to provide a sterilizer so constructed that the fire or source of heat used during the sterilizing operation will not cause the walls of the container member or tank of the sterilizer to buckle or crack under 5 the unavoidable expansion and contraction, thereby insuring long life to the tank. Another object is to form the tank that it will hold a large number of utensils, while at the same time the water tobe heated and turned into steam is contained in a relatively small area, thereby insuring quick results after the fire has been lighted.

A: further object is to provide a novel form of water-drain device without using valves or faucets, by means of which the water may be held in the tank to a height suflicient to wash the utensils prior to sterilizing; a certain amount of the water may then be run out to a desired level; and finally drained out entirely, the drain member then serving as an air vent useful in drying the sterilized utensils prior to removing them from the machine. I

A fourth object of the invention is to construct the device as a whole so that it is very easy to disassemble the parts for repairing and the like.

A further object of the invention is to produce a simple and inexpensive device, andyet one which will be exceedingly efl'ec- Pipes; and

tive for the purposes for which {it is designed.

These objects we accomplish by means of such structure and relative arrangement of parts as willfully appear by a perusal of the following specification and claims.

Inthe drawings similar characters of reference indicate corresponding parts in the several views? same.

Fi 4 is an enlarged fragmentary section on tli e line 4-4 of Fig. 3.

Referring now more particularly to the characters of reference on the drawings, the numeral 1 denotes the outer container or) shell, preferably rectangular in shape, supported on legs 1 and formed longitudinally along its bottom with a depression or trough 2 toserve as a firebox, which projects with a door 3 at one end, there .be*. ing a flue 4 at the opposite and upper end of the shell. An oil burner pipe indicated at 5 projects into the trough 2 if an oilburning system is used, or such other heating device may be installed as maybe found suitable. so

Around the upper edge of the shell 1 is i a rim 6, serving as a support for the flange 7, on the upper edge of the tank or inner container 8, shaped similarly to the. shell but space therefrom all around, especially as at the bottom. 7

The bottom of the tank has a longitudinal trough 9, of an area suflicient to contaln enough Water for steam-generation for sterilizing purposes. The bottom of this trough is curved transversely, and all cor- .ners are rounded, so that any contraction and expansion, due to the intense and localized heat when steam is being generated, is taken up in the curved surfaces, without any buckling of the tank being had and Without the use of stiffening members or braces of any sort.

By making the tank or container rectangular or oblong, the maximum number of Fig. 1 is a perspective view of the steri- 60 between, the pipe 17 of course utensils may be placed in the area available.

A removable grate 10, preferably of wood, rests on the bottom. of the tank above the trough 9, and hence above the level of the water during the sterilizing process.

A removable cover 11 for the tank and projecting thereabove, rests on the flange 7 of said tank. This cover is preferably made in two unequal sections, split transversely on an angle, said sections being hinged together along the top of the cover, and the smaller section 12 serving as a lid which may be raised without removing the entire cover, handles 13 being provided on said lid 12 for the purpose.

An air vent, 14, normally closed by a plate 15 turnable to uncover or open said vent, is provided in the cover.

At one end of the tank-trough 9 is a horizontal outlet or drain 16 while outsidethe shell is a pipe 17 substantially parallel to the end wall of the shell. This pipe is turnable in a vertical plane while being permanently connected to the. outlet 16 by reason of a ground-joint union 18 therehaving, a

right angle bend or elbow 19, adjacent the the ipe.

the water is drained from said trough 9.

union to bring it" into horizontal alinement withthe outlet. r,

When projecting vertically upward, the pipe-'17 is of such a length that the tank 8 may befilled without overflowing through inged at its upper end onto the end of the shell 1 is a plate 20 having a pair of vertically spaced and horizontal arms or lugs 21, positioned to either at a time support the pipe 17 and forming a sort of double bracket. The upper lug is positioned so that when the pipe 17 is resting thereon, the water in the tank may drain to the level of the top of the trough 9, and below the grate 10.

The height of the lower lug 21 is such that when the pipe is" resting thereon, all

In operation, the utensils to be sterilized are placed in the tank to rest on the grate, by raising the lid 12. The tank is then filled with water, the pipe 17 being raised to its uppermost position,'and the fire is started to heat the water to wash the utensils.

When this is done, the pipe 17 is lowered to rest on the upper lug 21, and the water will then drain out of the tank down to the desired level' and no more. The remaining water, of comparatively small volume but large surface, is then used in the generation of steam for sterilizing the utensils, this steaming being allowed to take place for the necessary period-of time.

This done, the fire is turned out. and the pipe is lowered to rest on the lower lug 21,

this being done by first raising the plate 20 on its hinge, thereby moving the upper lug 21 out of the path of movement of the pipe 17 and allowing thelatter to descend onto the lower lug 21, thus the water may be drained 'as described, or held at the different levels, without the use of valves.

The water then drained,- the vent 15v is opened, allowing the remaining steam to ,escape, which causes a .draft of airto pass into the tank through the pipe 17, which causes the utensils to be very quickly dried, especially if the exterior air is dry.

When it is desired to remove the tank from the shell, the cover 11 is first removed, and the union 18 uncoupled. By then slipping the portion of the union which is secured to the tank inwardly of the shell, by

moving said tank lengthwise-the-necessary distance, the tank can then be easily lifted up and outof the shell.

, From the foregoing description it will be readily seen that we have produced such a device as substantially fulfills the objects of the, invention as set forth herein.

While this specification sets forth in detai-l the. present and preferred construction.

invention what we claim as new and useful and desire to secure by Letters Patent is:

' 1. A drain structure for water tanks comprising a drain pipe open at its outer end mounted for rotative movement in a vertical plane and connected to the tank at the bottom thereof, vertically spaced stops mounted in the path of movement of the pipe, andmeans for moving the upper stop out of the way of the pipe to enable the latter to be moved downwardly into engagement with a lower stop.

2. The combination with a tank, of a liquid outlet pipe swivelle d on the outside of the tank and communicating with the interior thereof, and means for maintaining an arbitrary maximum and minimum fluid content within the tank, such means including spaced lugs mounted on and projecting from the outside of the tank and adapted to support the swivelled pipe, the lugs being so disposed as to allow the liquid to flow fro-m the tank only to the arbitrary maximum and minimum levels determined by the positions of the lugs relative to the top of the tank.

3. The combination with a tank, of a liquid outlet pipe swivelled on the outside of the tank and communicating with the interiorthereof, and means for maintaining an arbitrary maximum and minimum fluid content within the tank, such means including a bracket hinged to the outside of the tank and movable at right angles to the the positions of the lugs relative to the top swivel movement of said pipe, and a pair of the tank.

of vertically spaced lugs on and projecting In testimony whereof we aflix our signa- 10 from the bracket; the latter being movable tures.

to allow the pipeto rest on either lug to allow the fluid to flow from the tank only DAVID E. WELLMAN.

to the arbitrary levels as determined by HUBERT J. WELLMAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2652854 *Apr 28, 1951Sep 22, 1953Gen ElectricDrain control mechanism for washing apparatus
US2690764 *Jan 26, 1951Oct 5, 1954Separator AbApparatus of the overflow type for regulating the continuous flow of liquids throughcontainers
US3337997 *Mar 24, 1965Aug 29, 1967Rampe John FFinishing apparatus
US6027240 *Apr 24, 1998Feb 22, 2000Han; Leon M.Apparatus and method for precise mixing, delivery and transfer of chemicals
US6270246 *Nov 10, 1999Aug 7, 2001Leon M. HanApparatus and method for precise mixing, delivery and transfer of chemicals
U.S. Classification137/579, 237/78.00R, 134/186, 68/208
International ClassificationA61L2/06
Cooperative ClassificationA61L2/06
European ClassificationA61L2/06