US1483397A - Liquid weigher - Google Patents

Description

Feb. 12 1924.

W. E. TURNER LIQUID WEIGHER Filed D80. 22. 1922 INVENTOR, m 5. M,

4L; ATTORNEY.

Patented Feb. 12, 1924.

UNITED STATES 1,483,397 PATIENT OFFICE.

WALTER E. TURNER, 01* SPRINGFIELD. OHIO.

LIQUID WEIGHER.

Application filed December To all whom. it may concern.

Be it known that I, lVAL'rnn E. T'unNi-ni, a citizen. of the United States. residing at Springfield. in the county of Clark and State of Ohio. have invented certain new and useful Improvements in Liquid VVeighers. of which the following is a specification.

One of the principal objects of my invention is to provide a simple, economical and etlicient weigher for liquids that flow free 1y, andmore particularly for weighing condensate in connection with steam heating systems.

My liquid. weigher has no valves, springs or floats, and can operate either under pressure or in a vacuum line. It can be easily cleaned, inspected and calibrated without being removed from the casing, and will opcrate with but little friction. It is extreme-- ly accurate, and will not be affected by temperature changes, since it records the weight of the liquid and not its volume.

Other important and incidental objects will be brought out in the followingspecification, and particularly set "forth in the subjoined. claims.

One convenient form of embodiment of my invention is illustrated in the accompanying drawings, of which Figure 1 is a perspective view of my improved liquid weigher with the cover removed. Figure 2 is a perspective view of the cover therefor. Figure 3 is a cross sectional view taken on the line 33 of Figure 4. And Figure 4t is a longitudinal sectional view taken on the line 4 -4 of Figure 3.

Throughout the specification and draw ings, similar reference characters denote corresponding parts.

Referring to the accompanying drawings for a detailed description of the form of embodiment of my invention illustrated therein. the numeral ,1 designates a preferably semi-cylindrical casing constructed of suitable metal and having an outwardly flaring base portion 2. This casing terminates at its upper end in a wide flanged part 3 upon which there is adapted to be secured the lower flanged part 4 of a semi-cylindrical cover 5 constructed of suitable metal. (See Figures 1 and 2.) Mounted. on. the top of the cover 5 is a liquid inlet 6, and pro jecting outwardly from one end of the easing 1 is a liquid outlet 7.

Mounted for rotation within the casing just described is a rotor comprising two cir' 1922. Serial No. 608,409.

cular end walls 8. 8 between which there are secured six radialv partitions or vane-s 9 extending from a central shaft 10 on which the end walls are firmly secured, to the pe ripheral edges of the latter. One end oi the shaft 10 is journaled in a swivel bearing 1.1 supported by a bracket 12 riveted to the inner side of one end or the casing; 1. The other end of the shaft 10 is journaled in one end 01" a scale beam or lever 13 to be hereinafter more fully described. (See Figures 3 and 1.)

The radial partitions 9 are so arranged within the rotor as to provide six equal liquid-receiving compartments 14, although a greater or a less number of these com partments may be provided if desired. This rotor, which is made of copper or galvanized metal, is free to revolve within the casing to bring the top opening of each compartment 1 1 successively below the inlet 6 to receive therefrom the liquid to be weighed. Each compartment will be restrained by the following means, from moving beyond said inlet until it has received a predetermined amount of liquid.

Formed in the bottom of the beam 13 near its front end. is a notch 15 which fits over a knife-edge bearing 15. The latter, which is triangular in cross section, is sccured at its rear end to a support 16 that is attached to one end wall of the casing. Slidably mounted on the rear end, of the beam 13 is a counterweight 1.7. (See Figures 3 and 4.) These means work in con-- junction with means next to be described, to permit the rotor to turn after a compartment 14; has received a predetermined amount of liquid from the inlet 6.

Firmly secured to one end 8 of the rotor near its periphery is a series of stop elements 18, equal in number to the number'ot compartments 14. Each stop element 18 preferably consists of an angle piece which is so secured to the end, 8 of the rotor, that one end of it will project radially a sufiicient distance beyond the edge of the rotor to en gage stationary stop 19 which is secured to the under side of the cover 5 in vertical alinement with the shaft 10 of the rotor.

lVhen the liquid is being discharged from the inlet 6 into the upper compartment 14 of the rotor, the latter will be prevented from turning by the engagement of a stop element 18 on the rotor with the stationary stop 19 on the cover 5 of the casing. So

soon. however. as sutiicient liquid has enter d this compartment to overcome the weight of the counter-weight 17 on the beam 1 the end of the rotor which is supported by the trout end ot the beam will drop slightly to withdraw the stop element 18 from en gagement with the stationary stop 1.9.thereby permitting the rotor to revolve.

The friction between the knife-edge hearing and the beam. and between the stop elements. almost negligible during the descent 01 the rotor under the weight of the liquid in its upper compartment: and being tree to turn after the movable stop element clears the stationary one. the rotor would revolve very rapidly were it not for the tollowin g retarding means. Bolted between the flanged part 3 of the casing 1 and the flanged part i 01" the cover on the left side of the weigher. is the flanged part of a trough or tray 21 which. extends between the walls ot the casing 1. This trough curves downwardly over the horizontal plane otthe outlet 7. and thence upwardly to a point between the latter and the place of connection between the casing and cover on the right side of the device. The end of the trough on this side of. the weigher is removed a sufficient distance from the wall of the casing to permit the liquid in the trough to overflow into the bottom of the casing and then out. through the outlet 7. (See Figures 3 and 1.)

-is shown in Figure the trough 21 is normally filled to the level of its lower end. with the same liquid which is discharged into the rotor from the inlet 6. This is done so that the movement of the vanes 9 of the rotor through the trough will be retarded sutliciently by the liquid to slow down the speed of the rotor after it is released for rotation by the descent of one of its stop elements 19 below the stationary stop 19. The means thus provided tor preventing the rotor 'lrom revolving too tast when it. is released. are simple and positive. They give ample time tor the counter-weight 17 to rise nd fall and For the stops to properly engage.

In operation. liquid is admitted into the upper compartment 14- ot the rotor from the inlet 6 until the weight ot the liquid overcomes the weight of the counter-weight 17 on the beam 13. The rotor will then drop slightly to free the engaged stop element 18 from the stationary stop 19. whereupon the rotor will revolve counterclockwise to discharge the contents of the said compartment into the trough 21 below. Now as soon as a small quantity of liquid has been discharged from this compartment. the counter-weight- 17 will overcome the weight of the rotor and the liquid remaining therein. to elevate the rotor a su'dieient distance to cause the stop element 13 above the next compartment to engage the stationary stop 19. lt will be noted that the first movement of the rotor in revolving instantly cuts oil the tlow of liquid from the compartment being tilled. and causes the liquid to discharge into the conuiartment just tollowing it.

Now it was necessary to provide some mea to prevent the rotor from revolving too fast. and to carry out this purpose the tray or trough :21 was mounted in, the casing 1 under the rotor. is the rotor revolves. its compartment partitions hare to d splace the liquid in this tray. and in so doing check the speed oi the rotor. causing it to move freely but slowly. thereby permitting the stops to properly engage.

l lvery time the liquid i u mmpartmcnt it ot' the rotor discharged int the tray 21. an equal amount will overflow the lower end ot the latter into the bottom of" the casing for egress through the outlet The total weight ot the liquid thus tlowing through the weigher is recorded on a counter 22 secured upon the left hinge t of the cover 5. This counter is operated by a shaft 2 which projects through a hole in the cover wall. having fast on its inner end a gear 24. The latter meshes with gear 25 fast on the shaft 10. so that the counter may be operated when the latter is turned by the rotor.

It will be noted that my improved liquid weigher has no valves or springs. it may be easily inspected and repaired. and may be readily calibrated by moving the counter weight in or out on the beam 13. \Vhile my weigher is more particularly designed for weighing condensate in connection with central heating plants. it may be readily employed for weighing any liquid which flows freely.

I do not wish to be limited to the d tails oi construction and arrangement herein shown and described. and any changes or modifications may he made therein withir the scorn ot the subioincd claims.

Having described my invention. T claim:

1. In a device ot the type described. the combination with a casing. of a rotor having liquid receiving compartn'ients revoluble in said casing. a liquid inlet in said casing above the rotor for discharging liquid successively into each compartment thereof. a shaft upon which the rotor is mounted. a stationary stop in the casing above the rotor. a series of stop elements secured to the rotor for successive engagement with the stationary stop to hold the rotor in a stationary pos tion when a com partment thereof is under the liquid inlet. a swivel bearing in said casing for one end of said shaft. and a depressible bearing in said casing for the other end of said shaft. whereby. when a predetermined amount of liquid has been discharged into the compartment of the rotor under the liquid inlet, the rotor will descend a t icient distance to draw the stop element which is in engagcmcnt with the stationary stop, below the latter for the purpose specified' 2. In a device of the type described, the combination with a casing, of a rotor having liquid receiving compartments revoluble in said casing, a liquid inlet in said casing above the rotor for discharging liquid successively into each compartment thereof, a shaft upon which the rotor is mounted, a stationary stop in the casing above the rotor, a series of stop elements secured to the rotor for successive engagement with the stationary stop to hold the rotor in a stationary position when a compartment thereof is under the liquid inlet, a swivel bearing in said casing for one end of the shaft, a member fulcrumed in said casing to receive the other end of said shaft, and a counterweight movable along said member for the purpose specified.

3. In a device of the type described, the combination with a casing, of a rotor having liquid receiving compartments revoluble in said casing, a liquid inlet in the casing above the rotor for discharging liquid successively into each compartment thereof, automatic means for releasing the rotor for movement after a compartment thereof has been filled with a predetermined amount of liquid, and a liquid-containing trough in the bottom portion of the casing, through which the lower side of the rotor passes, to receive the liquid from the compartments of the latter and discharge it into the bot tom of the casing.

4;. In a device of the type described, the combination with a casing, of a rotor having liquid receiving compartments revoluble in said casing, a liquid inlet in said casing above the rotor for discharging liquid successively into each compartment thereof, automatic means for rel aasing the rotor for movement after a compartment thereof has been filled with a predetermined amount of liquid, a liquid outlet in the bottom of the casing, and a liquid-containing trough through which the lower end of the rotor passes, extending in a curved manner from a point in one side wall of the casing to a lower point near its other side wall and over the liquid outlet, to receive the liquid from the compartments of the rotor and discharge it into the bottom of the easing for egress through the liquid outlet.

5. In a device of the type described, the combination with a casing, of a rotor revoluble in said casing, radial partitions in said rotor dividing it into liquid receiving compartments, a liquid inlet in said casing above the rotor for discharging liquid successively into each compartment thereof, au tomatic means for releasing the rotor for movement after a compartment thereof has been. filled with a predetermined amount of liquid, and a liquid-containing trough secured in the bottom portion of the casing, through which the outer ends of the radial partitions pass for the purpose specified.

6. In a device of the type described, the combination with a casing, of a rotor having liquid receiving compartments revoluble in said casing, a liquid inlet in said casing above the rotor for discharging liquid successively into each compartment thereof, a shaft upon which. the rotor is mounted, a stationary stop in the casing above the rotor, a series of stop elements secured to the rotor for successive engagement with the stationary stop to hold the rotor in a stationary position when a compartment thereof is under the liquid inlet, a swivel bearing in said casing for one end of said shaft, a depressible bearing in said casing for the other end of said shaft, a liquid outlet in the bottom of said casing, and a liquid-containing trough mounted in said casing above the liquid outlet and through which the lower side of the rotor passes for the purpose specified.

In testimony whereof I have hereunto set my hand this 18th day of December, 1922 WALTER E. TURNER. Witness:

HOWARD S. SMITH.

Images