US1223593A - Liquid-weigher. - Google Patents

Description

G. D. LIVINGSTON.

LIQUID WEIGHER.

APPLICATION FILED 00?.19. 1914.

Patented Apr. 24,1913.

4 SHEETS-SHEET l.

Patented Apr. 24, 1917.

4 SHEETS-SHEET 2.

l0 5 a/ 0",; \7 a8 I l V 7 1' 2% lnvenroy" 6. D. LIVINGSTON.

LIQUID WEIGHER. LAPPLICATIQN FILED OCT. 19. 1914.

rge Lnvinssfon G. D. LIVINGSTON.

LIQUID WEIGHER. APPLICATION FILED OCT. 19. I914.

Patented Apr. 24,1917.

4 SHEETS-SHEET 3.

inveni'or WHRQSSQS (TQA G. D. LIVINGSTON.

LIQUID WEIGHER.

APPLICATION FILED ocr. 19. 1914.

Patented Apr. 24, 1917.

4 SHEETSSHEET 4.

jnvenf r onoaen n. Lrvmosron, or MINNEAEQLIS, mnvnnso'rn, Assrenoa 'ro ROBERT E. WHITACBE, or s'r; PAUL, mmnnso'rn.

' .moom-wmenna.

ispeciflcatiers Patent. Patented Apr. 2%, 1917, 7

Application filed October 19, 191%. Serial No. 867,434.

To all whom z't may concern:

Be' it known that I, Gnome D. 'L1v1No-- STON, a citizen of the UnitedfStates, residing at Minneapolis, in the county of Hennepin and State of- Minnesota, have invented certain new and useful' lmprovements 1 n Liquid-Weighers, of which the following is a specificationinvention relates to improvements in automatic liquid weighers desi ed particularly for weighing and registering the amount of feed water that is supplied to' the boiler 01'' an engine. Its objects are to provide apparatus whichcan be interposed in the water supply system and which will automatically weigh the amount of water passing through it to the boiler or boiler feed. pump,.an,d which will be simple and strong in construction and efiicient in operation. In carrying out the invention I have devised apparatus whereby the inflow ing water is automatically distributed into charges of predetermined weight and the,

charges are delivered to a storage tank from which it can be fed to'the boiler or'other .place of use as desired.

More particularly the invention consists and claimed.

lnthe accompanying drawings showing an embodiment of the invention,

Figure 1 is a frontelevation of the improved apparatus partly broken away;

Fig. 2-is,a front elevation of the apparatus on an enlarged scale with some parts broken away;

Fig. 3 is a rear elevation thereof partly brokenaway Fig. 4 is a side view thereof also partly broken away; and t t Figs. 5 and 6 are detalls partly insection, of the two float lever'clutches, as seen from the yoke between themso that the opposing inner sides of the float armsare exposed.

In the-drawings 2 represents a feed watersupply pipe havin a downturned discharge elbow 3 Be ow the elbow is a tank having two'si nilarly shaped compartments 4 and 5, res ectivel ,of equal size arranged symmetrical y side y side and separated b means of an upright partition wall S-Whie extends nearly to. the. top of the tank in line with the vertical axis of the elbow 3. Beneath this tank is a storage tank A having ivotally suspende ten ing up through the compartment. The

valves and valve rods are arranged symmetrically on each 'side of the partition Wa'1l6. A-swingin cylindrical spout 9 is from the elbow 3 by means of horizontal pivots 10 at front and rear, so that it will oscillate upon a transverse horizontal axis -and can be swung across the 'top of the partition wall to direct the fiow of water'firstinto one com-' partment and then into the other.

Secured to the top of the partition wall at the rear of the spout is a bracket 11 having upstanding end lugs in which is mounteda longitudinal pin 12. .Rotatably supported upon this pin adjacent to the spout is a combined valve and spout lever having 'a cross arm 13, the ends of which are pivotally connected with the tops of the valve rods 8, and a central upstanding arm 14: carrying-a transverse pin .15, one end! of which projects into the space between two parallel guide lugs 16 upon therear of the spout whereby to move the spout, so that when the valve and spout lever is oscillated, it will not only operate the valve rods but also swing the spout across the top of the partition 6. In this operation the valves "7 will be alternately openedand closed, one of them being opened through the same movement of the lever which closes the other and vice versa, while the spout will be swung from the compartment inwhich the valve is being pened to that in which vthe valve is being closed.

The spout andv valve lever is. operated the top this lever yoke has a central up.

.wardly extending arm 18 upon which is a weight '19, so that whenthe yoke stands with'the rod in vertical position it will be in unstable equilibrium and ready to'drop over to one sideor the other. The valve and s out lever is operated by this yoke through 't e medium of its pin 15, one end of which,

as has been stated, stands between the, guide lugs 16 on the spout, while the other end extends through the opening in the lever yoke,

. where it will be engaged and moved by one tively,. of the lever yoke 17 and in close proximity thereto. The, hub of each float arm-has a clutch lug 22 on its inner side in position to engage a co-acting clutch lug 23 upon the adjacent side of the hub of the lever yoke, so that when the float lever arm turns to carry its lug 22 against the lug 23 ,of the yoke, the yoke will be turned upon its axis untilthe arm 18 passes beyond the vertical position, when the yoke will suddenly drop over'on the other side under its own Weight. As it drops it will strike and carry with it the pin 15 uponthe spout and valve lever, thereby' turning the lever as above described. In Figs. 5 andG are shown the relative positions of the clutch lugs upon the two float arms and the yoke when the.

yoke is in upright position, as shown in Fig,

3, the float arms being shown as seen from the yoke between them, so that their inner sides are shown. I

Whentheapparatus is at the beginning of itsoperation, both tank compartments will be. empty. :"lf then the-yoke lever is thrown over toward one of the tank compart'ments, for. instance the compartment [nuinbered l, it will throw the valve and spout lever over in the same direction, there by closing the valve 7 in the compartment 4 and swinging the-mouth of thespout so that it will discharge the flowing water into that rising of the float will push the weighted yoke beyond its position of unstable .equilib compartment. As the water rises in the I compartment itwilllift the float therein and turn the float lever upwardly. As the floatlever rises its lug 22', bearing against the lug 23 on the yoke, will in turn lift the yoke and turn it on the pin 12 until-the float has nearly reachedthe top of the tank and the yoke stands in the upright position shown in the: drawings. Then any further v 'riiim and cause it to drop quickly over toward the other tank compartment 5. In its drop it will' s'trike and carry with it the pin 15, thereby with a quick movement at once opening the valve in the full compartment 4 1 and closing the valvein the empty compartment '5, as well as swinging the mouth of the spout across the partition wall from compertinent to the compartment 5. When the yoke'falls its weight will rest at first upon the pin 15, thereby holding down the spout and valve lever and keeping the valve closed in compartment 5, and when the yoke is gradually lifted from the pin by the rising float, the 'valve will beheld down by the ever increasing pressure of the rising water.

1V hile the water is thus rising in the compartment 5 it will be discharging from the compartment 1 through the valve 7 into the storage tank below, so that the float in this compartment will drop as the water level recedes. As the float rises in compartment 5 it will gradually lift the yoke up to and beyond its upright position of unstable equilibrium, when the yoke will drop over again toward the nowempty compartment with a sudden throw, thereby closing the valve in that compartment and opening the valve in the filled compartment 5, and at the same time swinging the spout from the filled compartment to the empty compartment in the manner already described. This operation will continue automatically and continuously as long as the fiow of water is allowed to continue through the pipe 2. 'When the water in the storage tank rises to a certain level the supply through the-pipe 2 can be cut off automatically or otherwise by suitable valve and fioat connections- (not 'shown)."

Thus thecharges of Water will always be equal in volume and weight, so that to determine the weight of the water passing into the boiler it is only necessary tolcalculate the weight of one of the. charges and multiply it by the total number of charges. If desired the number of charges can be registered'upona dial 24, as shown in Fig. 1, by

means of suitable mechanism not shown, connected with the yoke by means of a connecting rod 25, or in any other suitable way.

When the tank compartments for any reason are made shallow, the weight of the water upon the valves will be smaller than in the case of a deeper tank, so that it may be desirable to apply additional pressure to the valve. For this purpose I have provided i as a supplementary pressure device a tube 26 partly filled with mercury or some-other heavy instrumentalitythat will flow or run easil through the tube when the same is tilte The tube is arranged across the apparatus and is pivotallyj-supported upon the :5

valve lever'13 by means of the arms 27, so that it will swing with the valve lever. The

tube has at each end a bulb 28. Thus when the valve lever arm is inclined downward the tube will be inclined with .it and the mercury will flow into the bulb at the lower end thereof thus exertin pressure on the valve rod 8 and the close valve. 1 claim as my invention;

1. In- .an automatic liquid wei'gher, the combination with a source of liquid supply, of a pair of tanks having outlet valves, an

oscillatory spout adapted to direct the flow I of liquid into one or other of said tanks according to the direction in which it is swung,

an oscillatory valve lever operatively' con nected at its opposite ends with the valves in said respective tanks, a top weighted element having a transversely extending opening at the top and a pivotal support at its lower end, a lateral pin carried by said valve lever and extending into the opening in the top weighted element, an operative connec: tion between said lever and said spout, and floats actuated by the rise of the liquid in the tank which is being filled and operative to turn the top weighted element until the center of gravity thereof is shifted to the other side of its pivotal support, whereby the top weighted element will drop over and strike the pin upon the valve lever, thereby throwing said lever and swinging the spout.

2. In an automatic liquid weigher, the combination with a source of liquid supply, of a pair of tanks having outlet valves, an

oscillatory spout adapted to direct the flow,

of liquid into one or the other of said tanks, according to the direction in which it is swung, an oscillator} valve lever operative to open and close the valves in said respective tanks, a top weighted lever having a pivotal support at its lower end, a pair.of

floats loosely mounted upon said pivotal support on opposite sides of said top weighted lever, one of said floats working within one tank and the other float within the other tank, cooperating means upon the floats and Weighted lever, whereby said lever will be lifted and turned by 'one or other of the floats as the float rises in its tank, an operative connection between said valve lever and the spout, and means carried by the valve lever in position to be engaged by the weighted lever when the same is turned so far that its center of gravity is shifted to the other side of its pivotal support, whereby the valve lever is turned and the mouth of the spout is shifted from one tank to the other.

3. In an automatic liquid weigher, the combination with a source of liquid supply,

of a pair of tanks having outlet valves, an I oscillatory spout adapted to direct the flow of liquid into one or other of said tanks according to the direction in which it is swung,

an oscillatory valve lever operative to open and close the valves in said respective tanks and having an upstanding arm, a top weighted lever having a pivotal support at its lower end, and formed with a transversely extending opening, a lateral pin carried by said arm and engaging the spout at one end and extending into the opening in the top weighted lever at 'the other end, a pair of floats mounted on said pivotal support and working within said tanks respectively', and cooperating clutch lugs upon the floats and top weighted lever whereby each float as it rises in the tank will engage and turn said lever, thereby causing said lever to drop over and strike said pin when it has been turned so far as to shift its center of gravity to the other side of its pivotal support, whereby to turn the valve lever and swmg the spout. 7

4:. In an automatic liquid weigher, the

combination with a source of liquid supply,.

of a pair of tanks having outlet valves, an

oscillatory spout adapted to direct theflow swung, an oscillatory valve lever operatively connected at its opposite ends with the valves in said respective tanks and having anu standing arm, a top-weighted skeleton yo e having a pivotal support at its lower end, a lateral pin carried by said arm and engaging the spout at one end and extending through the yoke at the other end, and means-actuated by the rise of the liquid in the tank which is being filled for turning the yoke until its center of gravity is shifted to the other side of its pivotal support-whereby the yoke will drop over and engage said pin, thereby turning the valve lever and swinging the spout.

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

enonen n. LIVINGSTON.

Witnesses ARTHUR P. LOTHROP, H. Swanson.

Images