US1338995A - Liquid-supply-control apparatus - Google Patents

Description

v G. MOORE.

LIQUID SUPPLY CONTROL APPARATUS.

APPLICATION FILED MAY 17, I917.

[Patented May 4,1920.

13 woos GEORGE MOORE,-OF J'OPLIN, MISSOURI.

LIQUID-SUPPIaY-CONTROL APPARATUS.

Specification of Letters Patent.

Patented May 4, 1920.

Application filed May 17, 1917. Serial No. 169,370.

To all whom it may concern:

Be it known that I, GEORGE Moonn, a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Liquid-Supply-Control Apparatus; and I do hereby 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.

This invention relates to improvements in control apparatus for governing the delivery of liquid from a supply pipe. The particular application of the invention in the embodiment herein specifically set forth pertains to the control of the delivery of filtrate to a container, but, of course, the i1'1 vention is adapted for utilization wherever it is desirable to control the delivery of liquid consistent with the amount supplied.

In the accompanying drawing,

Figure 1 is a vertical, central section through an apparatus embodying the features of the present invention, parts being seen in elevation. v

Fig. 2 is a View in elevation of parts of the device separated from their container, the view being taken on a plane at right anglcs to the plane of the section in Fig. 1.

Fig. 3 is an enlarged, detail, fragmentary side elevation of a part of the interior of the control float.

Fig. 4 is a horizontal section taken approximately on the plane indicated. by line 44 of Fig. 1. j

Referring to the drawing by numerals, 1 indicates a cap ofthe filter, not illustrated, but, for example,'such as the filter fully set forth in my (Jo-pending application filed July 15, 1915, SerialNo. 40,116. A tube-3 extends into the cap 1 to receive the filtrate and may be secured to the cap in any appropriate manner as by being threaded and receiving a nut engaging the cap. The pipe 3 extends upward into a float chamber 4. For facility of locating the discharge end of the pipe 3 substantially centrally of the float chamber, the pipe is bent to form an offset at its lower-portion and bentinto a gooseneck at its upper portion terminating in an enlarged discharge end 5. In the discharge end is arranged a tubular plug 6 formed at its lower endwith a valve seat 7 adapted to receive the point of a needle valve 8. The enlargement 5 extends below the plug 6 and forms a guide and retaining housing for the needle 8 and also extends below the needle for providing a supporting frame for the needle actuating device. The needle actuating device consists of a lever 9 extending through slots 10, 10 in the lower portion of the enlargement or housing 5 and supported therein by a cross pin 11 extending through and fixed to the housing and extending through an elongated or slot-like notch 12 in the lever 9. The lever 9 is thus adapted topivot upon the pin 11, but is free to move vertically relative thereto and within the slots 10 so as to be free to shift the needle 8 upward to its seat when the lever 9 is lifted upward and to allow the needle to fall away from the seat when the lever 9 is lowered.

' Nested within the float chamber 4 is a bell float 13 adapted to be lifted when the liquid level in the chamber 4 rises sufliciently for that purpose. The lever-9 is of a length slightly less than the interior diameter of the float 13 and extendsacross the float. A substantially annular flange 14 is fixed to the float 13 near its lower'end and extends inwardly therefrom. The flange 14 is not completely annular because it is interrupted at two diametrically opposite points to form side of the pivot from that at the other side.

When the parts are assembled they are in the position indicated in Fig. 1 with the ends of the lever above the flange 14. The filtrate entering through pipe 3 and discharging past needle 8 and out through ports 17 17, formed in the housing 5 will begin to fill the lower end of float 13 so as to slightly lift the float and will then escape into chamber 4 from which it will pass out through a discharge pipe 18 communicating with the chamber 4 until delivery through pipe 18 is no longer required. The liquid then continues to fill the chamber 4 which eflects further elevation of the float 13. As the float ascends the lever 9 will swing upon its pivot until its raised end strikesthe flange 14, the opposite end having been carried up by the action of the flange. Then the entire lever lifts and with it carries the needle 8. This upward movement continues until the needle engages its seat 7 The supply of liquid is thus cut off and the float and other parts remain in the position assumed until liquid is again drawn from the pipe 18. Upon the drawing of further liquid through pipe 18 the float 13 will proportionally descend and thus allow the needle valve 8 to leave its seat, and to remain ofl'. of its seat until the contents of the chamber 4 becomes sufficient to return the float to its former position.

Since the float 13 is merely loosely positioned within chamber 4 and there is nothing to prevent it from working angularly, it is obviously desirable to prevent the lower end of lever 9 from coming into register with either of the apertures 15. The inclines 16 are, therefore, provided so that when the float 13 reaches a position where the lever 9 is relatively located, as seen in Fig. 8, the striking of the inclines 16 against lever 9 will afford suflicient resistance to. prevent the float from working further in that direction. However, when it is desired to remove the float, the operatormay grasp the same and shift it angularly against the resistance of lever 9 in its engagement with one of the inclines 16. This will cause the lower end of the lever to rise and to assume a position above the notch 15. WVhen the lower end of the lever has moved in this manner, the opposite end of the lever will also be in register with the diametrically opposite notch 15 and the float may then be withdrawn from the chamber 4:. To facilitate access to the float, the chamber 4. is preferably open at its upper end and provided with a removable cap or closure 19. In replacing the float the inclines 16 will assist in guiding the lever 9 to registration with notches 15. Difficulty would, however, be experienced in endeavoring to cause the two ends of lever 9 to pass through notches 15 when applying the float if no provision was made for causing the lever to assume a substantially horizontal position. To this end,

a short flange or detent 20 is arranged above and across each of the notches 15, so that when float 13 is being lowered into place,

the upper end of lever 9, passing through one of the notches 15, will strike detent 20.

'Further descent of the float will cause the lower end of the lever to swing upward through the other notch, until it strikes the respective detent 20. The float 13 is then partly rotated and released. Lever 9 is then in its operative position with respect to flange 14."

What I claim is: -v

1. In liquid supply control apparatus, the combination with "a float chamber, of a supply pipe adapted to discharge into the cham her, a valve for shutting off such discharge, a lever for actuating the valve, pivotally mounted and bodily movable relative to its pivot, and means surrounding the lever and adapted to float within the chamber for shifting the lever bodily for actuating the valve.

2. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe adapted to discharge into the chamber, a valve for shutting ofhsuch discharge, a lever for actuating the valve, pivotally mounted and bodily movable relative to its pivot, and a float in the chamber surround ing the lever and. disposed to engage portions thereof at opposite sides of its pivot for bodily shifting the lever for actuating the valve. 7

- 3. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe adapted to discharge into the chamher, a valve for shutting off such discharge, a lever bodily movably mounted and extending across the valve in position for closing the valve, a float in the chamber surrounding the lever, and means projecting from the float and underhanging the lever for bodily shifting the lever for closing the valve when the float reaches a predetermined elevation.

' 1. In liquid supply control apparatus, the combination with a float chamber,.of a pipe adapted to discharge into the chamber, a

valve controlling the discharge from said pipe, a lever disposed to engage the valve for closing the same, the lever extending at opposite sides of the valve, a float in the float chamber surrounding the lever, and means projecting from'the float beneath the projecting ends of the lever and disposed to engage the lever. for closing the valve when the float reaches a predetermined. elevation.

5. In liquid supply control. apparatus, the combination with a float chamber, of a supply pipe arranged to discharge downwardly within the chamber and having a valve seat at the point of its discharge, a valve arranged to move upwardly to said seat for shutting off suchdischarge, a lever extending across and beneath the valve and having free ends extending beyondthe valve, and an annular float in said chamber surrounding the lever and having portions disposed beneath the free ends of the lever for moving the lever and valve upwardly as the level of the liquid in the float chamber rises:

6. Inliquid supply control apparatus,.the

combination with a float chamber,of a supply pipe arranged to discharge downwardly within the chamberand having a valve seat ing across and beneath the valve and having free ends extending beyond the valve, a bell float surrounding said lever, and a substantially annular flange extending inward from the float beneath the free ends of the lever.

7. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe arranged to discharge downwardly within the chamber and having a valve seat at the point of its discharge, a valve arranged to move upwardly to said seat for shutting oif such discharge, a lever extending across and beneath the valve and having free ends extending beyond the valve, a bell float surrounding said lever, and a substantially annular flange extending inward from the float beneath the free ends of the lever, the flange being formed with notches for the passage of the ends of the lever when alined with said notches.

8. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe arranged to discharge downwardly within the chamber and having a valve seat at the point of its discharge, a valve arranged to move upwardly to said seat for shutting off such discharge, a lever extending across and beneath the valve and having free ends extending beyond the valve, a bell float surrounding said lever, and a substantially annular flange extending inward from the float beneath the free ends of the lever, the flange being formed with notches for the passage of the ends of the lever when alined with said notches, the flange being inclined upward at the opposite sides of each notch.

9.- In liquid supply control apparatus, the combination with a float chamber, of a supply pipe arranged to discharge downwardly within the chamber and having a valve seat at the point of its discharge, a valve arranged to move upwardly to said seat for shutting off such discharge, a lever extending across and beneath the valve and having free ends extending beyond the valve, a bell float surrounding said lever, a substantially annular flange extending inward from the float beneath the free ends of the lever, the flange being formed with notches for the passage of the ends of the lever when alined with said notches, and detents extending above and across the notches in position for engaging the ends of the lever when the float is passed down over the lever as the parts are being assembled.

10. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe arranged to discharge downwardly within the chamber and having a valve seat at the point of its discharge, a valve arranged to move upwardly to said seat for shutting off such discharge, a lever extending across and beneath the valve and having free ends extending beyond the valve, a bell float surrounding said lever, a substantially annular flange extending inward from the float beneath the free ends of the lever, the flange being formed with notches for the passage of the ends of the lever when alined with said notches, the flange being formed with means for preventing accidental register of the ends of the lever with the notches during operation.

11. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe extending into the chamber and having a discharge opening downwardly, the pipe being formed with a valve seat, and having an enlargement extending below the valve seat and provided with a lateral discharge opening and slots below such discharge opening, a lever extending through the slots, a pivot pin for the lever, the lever being formed with a notch in which is en-' gaged the pivot pin for pivotally supporting the lever while leaving the lever free for bodily movement along the slots, a valve between the lever and the valve seat adapted to be moved to the seat with bodily movement of the lever, the lever having free end portions outstanding from the sides of the enlarged portion of the pipe, and a float in the float chamber adapted to engage the opposite portions of the lever for bodily shifting the lever with the rising of the liquid level in the float chamber.

12. In liquid supply control apparatus, the combination with a float chamber, of a supply pipe discharging downwardly in the chamber and having a valve seat at the point of discharge, a valve adapted to engage the seat for closing the discharge opening, a bodily movable lever pivotally mounted beneath. the valve for shifting the valve to its seat when the lever is bodily moved, the lever being over-balanced in one direction so as to normally maintain an inclined position, a bell float surrounding the lever and having an inwardly extending flange disposed to engage the end portions of the lever for moving the lever bodily with the rise of the liquid level in the chamber.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE MOORE. Witnesses:

O. H. FESLER, EDGAR M. Krronm.

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