US1132593A

US1132593A - Mercury-loader.

Info

Publication number: US1132593A
Authority: US
Inventors: Ernest F Lloyd
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-02-14
Filing date: 1911-02-14
Publication date: 1915-03-23
Anticipated expiration: 1932-03-23

Description

E. F. LLOYD.

MERCURY LOADER.

APPLICATION FILED FEB 14, 1911 1,1 32,593, Patented Mar. 23, 1915.

3 SHEETS-SHEET 1- Sum/atom Emma: :41 F. LLOYD q/qhbvwoow E. F. LLOYD.

MERCURY LOADBR.

APPLIOATION FILED P1713114. 1911.

1,132,593. Patented Mar. 23, 1915.

3 SHEETSSHBET 3 E. F. LLOYD.

MERCURY LOADER.

APPLICATION FILED FEB-14.1911. [,132,593. Patented Mar. 23, 1915.

3 SHEETS SHEBT 3.

(Qwuwwtoz Emma s'rF- LLOYD q viwwoeo QM W1 k m/v UNITED ATES reruns oriuon.

ERNEST F LLOYD, 0F DETRGIT, MICHIGAN.

mnncnar maonze,

Application filed February 14, 1811.

To alt whom it may concern:

Be it known that 1, Banner F. LLOYD, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Mencury-Loaders, of which the following'is a specification, reference being had therein to the accompanying drawings. P

This invention relates to a loader for a valve governing the flow through a main or through any form of apparatus whereby the valve is made to operate through the medium of or in accordance with variations in the drop in pressure in a moving columnof fluid.

The invention consists in the matters hereinai'ter set forth and more particularly pointed out in the a pended claims.

In the drawings, igure 1 is a view partially in elevation and partially in section of one form of apparatus embodying features of the invention, showing the parts in the positions assumed when the valve to be con-.

rolled is fully loaded; Fig. 2 is a corresponding view showing the parts in the positions assumed when the control valve is not loaded; Fig. 3 is a view partly insection and partly in elevation a modification of the device; and Fig. 4 is a plan view of the apparatus shown in Fig. 3.

As herein indicated a vvalve l of any preferred type is operated hy a diaphragm 2 to close under certain conditions of pressure, the diaphragm being secured in the usual manner in a drum or shell 3'. The diaphragm has a cup 4 which is shielded by an upper casing 5 and. may, if desired, provided with removable weights 6 that-constitute a constant load on the diaphra i whereby it operates when under a predetermined pressure. A governor drum 7 is divided into two closed compartments by a flexible diaphragm 8. The upper compartment is in communication through a pressure pipe 9 'With a high pressure or inlet arm of a conduit 10, the fluid passing through the latter being the medium whose variations in pressure are to control the valve 1. The other compartmentbelow the diaphragm 8 is in communication with the circuit through a low pressure pipe 11 which opens into the conduit at a point beyond the entrance of the presence pipe Specification of Letters Patent.

escape of gas Patented Mar. 23,1915.

fien'ai No, 608,487.

may conveniently be connected to the t iroat of the Venturi pipe indicated forming a by-pass around a restriction or valve 13 placed in the main on the outlet side of the pressure pipe The downward movement of the diaphragm 8 may be limited by an adjustable stop 14 which as herein disclosed may conveniently be in the form of a rod screwthreaded through the base of the drum 7, with a check nut 15 to secure it in adjusted position.

A float chamber 16 is secured on the cover 17 of the drum 7 and is provided with an open tube 18 in which a stem 19 secured to the diaphragm S freely rcciprocable. A float 20 is secured on the stem 19 and is pro vided with a central aperture to clear the tube 18 and with a sealing tube 21 closed at its upper end and ads ted at its lower end to project below the float into liquid'contained in the float chamber toform with the tube 18 a liquid seal that prevents the from the'upper compartment of the drum 7. Preferably the float 20 is annular or at least is of such dimensions to leave a narrow interval only between the wall of the float chamber and the-outer face of the float. The upper end oft-he stem extends through an opening in the cover 22 on the float chamber and is attached by a flexible connecting member 23 to the end of a walking-henna or balance lever 24. The ends of the latter are prefer-- ably segmental to avoid change in the length of the balance arm. when the latter is in oblique position.

A counterbalance tank 25 is hung by a flexible member 26 to the ker 1% of the balance arm '2": and is piO'viti charge nozzle "27 at its lower end. The latter is connected by a flexible pipe or hose,

ed with a dis-- [if desired. A valve 55 it to flow flexible connection to permit free movement of the diaphragm and cup. The flow through the nipple 27fis controlled by an adjustable'valve 34 oiany preferred type. The parts are so disposed that when the difference in pressure between the pressure pipe 9 and the exhaust pipe 11 due to the flow in the conduit is at a predetermined or desired pcint, the controlling valve 1 is open or at least is subject only to the effect of its diaphragm 2 and the superposed weights 6. If however, this difference in pressure increases the master diaphragm 8 draws the float 20 into the liquid contained in the chamber 16 against the buoyant effect of that liquid and thereby raises the counterbalance tank 25. This causes liquid therein, which is preferably mercury, to flow into the cup of the controlling valve and thereby,increase the load on the latter and depress it against the pressure that supports the valve diaphragm 2. Decrease in difference in pressure between the pressure pipe 9 and the exhaust pipe 11 reverses the opera tion, depresses the tank 25 and allows the mercury or other liquid to flow out of the valve cup. The velocity of flow may be regulated by the valve 34 to prevent sudden oscillation of the apparatus and the downward range of movement of the master diaphragm 8 is also determined by the stop 14.

In Fig. 3 a modification is shown wherein the movement of the main diaphragm displaces liquid in the float chamber and causes on to the controlling valve. In preferred form. such an arrangement of. the apparatus includes a main drum 35 divided by a flexible main diaphragm 36 into an upper and lower compartment respectively in communication pressure points of a conduit through the pressure ipe 37 and exhaust pipe 38. A stem 39 rom the diaphragm extends upwardly and loosely through the tube 40 into a float tank 41 mounted on a cover-a2 of the drum 55. A float 43 that nearly fills the "hamberll is secured to the upper end of the stem 39 by a pipe 4A that loosely encircles the tube 40 and forms therewith a liquid seal when its lower end is immersed in liquid in the phamber. A pipe 45 connects the float chamber with the upper portion of a diaphragm drum 46 mounted on the casing of a controlling valve 47 similar tothe valve 1. The valve itself is operated by a diaphragm 48 011 which there is a cup 49in communication through an inlet nipple 50, flexible hose 51 and fitting 52 with the pipe 45. A shield 53 protects the drum and movable weights 54 may he controls the flow through the pipe 45'. Bythe latter method of construction movement of the diaphra m 36, which may be limited by an adjusta le stop 56 causes the displacement of a greater with the high and. low;

placed on the cup or less volume of fluid in the chamber 41. Vvhen the liquid rises above a predetermined level it flows into the cup 49 of the valve 47 and thereby tends to overcome the lifting effect of the diaphragm i Qbviously, changes in the details of construction may be made without departing from ,the spirit of the invention and I do not care to limit myself to any particular form or arrangement of parts. 1

I claim as my invention: I I

1,. In gas apparatus, a fluid pressure actuated controlling valve, a liquid holder Weighting the valve, a conduit, an adjutage in the conduit, a reciprocable member moving in response to variations in the drop in pressure past the adjutage, a loading liquid container, a displacement member operated by the reciprocating member to vary the level of the liquid in the container and a conduit between the container and the holder whereby the levels of liquid in the two vary correspondingly.

2. In. gas apparatus, a fluid pressure actuated controlling valve, a liquid holder weighting the valve, a loading liquid container in communication with the liquid holder, a displacement member movable in the liquid container, and means adapted to be operated by variations in the drop in pressure in a moving column of fluid and adapted to move the displacement member.

3. In gas apparatus, loading means comprising a drum, a movable diaphragm dividing the drum into two compartments, a float chamber on the drum, a stem on the diaphragm passing through the float chamber, a float on'the stem in the chamber, pipes each leading from a compartment of the. drum, a'liquid holder-adapted to form a weight for a valv e, and means arranged to vary the level a? loading liquid in the holder in response 4,. In gas apparatus, loading means comprising a drum, a movable diaphragm dividing'the drum into two compartments, a float chamber on the drum, a stem on the diaphragm passing through the, float chamber, a lioat on the stem in the chamber adapted .to form a liquid seal for the stem, pipes each leading from a compartment of the drum, a liquid holder adapted to form a weight for the valve, and means arranged to vary level of a loading liquid in the holder in response to movements of the float.

5. In gas apparatus, loading means com prising a drum, a movable diaphragm divid' ing the drum into two compartments, a float chamber on the drum, a stem on thedie-Q phragm passing thrpugh" the -fioat chamber, a float onthe stem in the chamber, pipes each leading from a compartment (if ';he drum, a liquid holder adapted 'to form a" weight ior a valve, means arranged to a ry the. level of c a loading liquid in the holder in response to the movements of the float, and an adjustable stop in the drum adapted to limit the movement of the diaphragm in one direction.

6. In, apparatus, a governing drum, a movable diaphragm dividing the drum into two compartments, a float chamber on the drum, an open tube extending from the up per compartment of the drum into the float chamber, a, stem on the diaphragm extending through the tube, an apertured float secured on the stem over rind around the tube, a liquid holder adapted to form a valve weight, and means between the holder and float chamber adapted to change the level of a loading liquid in the holder in accordance with the movements of the float.

7. In gas apparatus, a governing drum, a movable diaphragm dividing the drum into two compartments, a float chamber on the drum, a stem on the diaphragm extending into the float chamber, a float on the stem in the chamber, a diaphragm for operating the valve. a liquid holder on the diaphragm, a Shitlh for the holder, a pipe connecting a nipple on the shield with the float chamber, and a flexible pipe connecting the nipple on the shield with a liquid holder,

8. In gas apparatus, a governing drum, a diaphragm dividing the drum into two compartments, a float chamber on the drum, a stem extending from the diaphragm into the float chamber, a float on the stem forrnnig With the drum a liquid seal for the stem, valve, a, movable diaphragm for operating thc valve, liquid holder we ght u v the valve :liaphragm and operatiic con; between the float chamlnrr and the h holder adapted to vary the levci 3 load liquid in the holder in. accordance with we movements of the float.

9. In gas apparatus, a governing drum, a

in the conduit and a pipe connecting the lower compartment with a point of lower pressure in the conduit.

10. In gas apparatus, a governing drum, a diaphragm dividing the drum into two compartments, a float chamber on the drum, a stem extending from the diaphragm into the float chamber, a float on the stem forming with the drum a liquid seal for the stem, a valve, a movable diaphragm for operating the valve, a liquid holder Weighting the valve diaphragm, operative connections be tween the float chamber and the liquid holder adapted to vary the level of a loading liquid in the holder in accordance with the move ments of the float, a conduit, a pipe connecting the upper chamber of the drum with a point of the conduit, an adjutage in the conduit on the low pressure side of the point of connection. "with said pipe, a Venturi pipe forming a bypass around the adjutagc, and a pipe connecting the throat of the Venturi with the lower compartment of the drum.

1]. ln gas apparatus, a. govcrn i d W1), movablev diaphragm dividing the driuu into two compartments, a float chamber on the drum, a stem extending from the diaphragm into the float chamber, a float on the stem in the chamber, a controlling valve, a diaphragni f0; operating the controlling valve,

a liquid ho der weighting the diaphragm, means controlled by the float and adapted to cl'zinge the level of a weighting liquid in the holder in accordance with the movement of the float, and means for regulating the rate oi all m re oi the liquid level independently of the "emcnts of the float.

12, ..as filJl 'li'llillS, a governing drum, :1

m vahic diaphragm dividing the drum into two coinparlr-cni's, a float chamber on the drum, a stem extending from the diaphragm into the floa vv hanbcr, a float on the stem within the cl atnbcr, a. valve. a diaphragm controlling the valve, a liquid holder weight ing the diaphragm, and llcxible connections aining communication between the .21 and the float chamber.

llfii in testimony whereof l aliix my signature in presence of two \vitucsscs.

ERNEST F. LLOYD,

W itnesscs L). l :i'II(KNEY, A, M. SHANNON.