US1352788A - Liquid storage and dispensing apparatus - Google Patents

Description

J. J. CATRON.

LIQUID STORAGE AND DISPENSING APPARATUS: APPLICATION FILED MAY 2. 1919.

1,352,788. 1 Patel ltedSept. 14,1920.

2 SHEETS-SHEET 1.

JJ Clwrozz.

J.J.CATR0N. LIQU'ID STORAGE AND DISPENSING APPARATUS.

APPLICATION FILED MAY 2, I919.

Patented Sept. 14, 1920.

2 SHEETS-SHEET 2.

awe/"4 oz del (a frail UNITED STA'I' ES ra'irela'r OFFICE.

Jonn' .1. canton, or nonnm, .rnxas. Y

LIQUID STORAGE AND DISPENSING APPARATUS.

Specification of Letters I Patent. Patented Sept, 192

Application filed May 2, 1919. Serial No. 294,277.

Toall whom it may concern:

Be it known that I, JOHN J. CATRON, a citizen of the United States, residin at Bonham, in the county of Fannin and tate ing apparatuses;

The purpose of the invention is to provide an air pressure system of storage and discharge for inflammable liquids which 1nvolves a high factor of safety and a positive means of discharge as well as eflicient economical operation. In carrying out the invention a storag: tank is united with a pressure tank. T storage tank has a filling inlet provided with a means of limiting the quantity and of liquid stored, whereby ample space 1s Q left in the storage tank to accommodate "the contents of the pressure tank, should said contents be displaced into the storage tank. A feature of importance is a dis charge of liquid from the pressure tank and precluding the possibility of the compressed air entering the liquid discharge pipe. other, feature is that all the openings are in 'valvcs' and controls are wholly within the tanks and accessible through the top of the storage tank.

The invention will be more readily understood from a reading of the following specification and by reference to the accom-.

panying drawings, in which an example of the invention is shown and wherein: a

Figurel is a view of an'apparattus constructed lEiaCCOIdaDCQ with the invention, partially tion, v

Fig. 2 is a vertical sectional view of the same, and

Fig. 3 is a sectional detail showing the opened and closed positions of the displacement valve.

In.the drawings the numeral 1 designates a storage tank havin a man-hole 2 at the center of its top. ressure tank 3 is united to the bottom 0 the tank 1 at the center thereof and closed by dished cap 4 which forms part of the bottom ofthe tank '1. A filling 601131 this made at the top of to a point above the bottom of the stora e a tank. A bracket arm 8 is supported ontfi elevation and partially in sec-' pivoted to the has its longer end bent upward-at an angle.

A float member 25 is fastened to the anguthe tank 1 and a filling pipe 6 extendsdown e lower'end of the pipe and has one end of a horizontal lever 9 pivoted thereto. The arm carries a valve 7 hinged thereon and adapted to seat against the bracket and seal the pipe when .the arm is swung up. The

.outer end of the arm is pivoted to the lower end of a rod 10 extending up through a bracket 6' on the pipe' 6; A float 11 is fastened on the upper end of the rod and its. descent is limited by the bracket. It will be seen that when the tank has been filled to a level above the bracket the float will rise therefrom and seat the valve 7 so that no more liquid can enter the tank 1: The level attained leaves a space at the top of the tank 1 at least equal to the ca acity of the pressure tank; and thus shoul the pressure tank overflow the contents will be accommodated in the storage tanks T At the center of the top of the pressure tank a nipple 17 'is secured and receives a cap 16. A tube 15'mounted in the cap depends into the pressure tank and carries a valve casing 12 above the cap. valve 14 is hinged in the casing so as to swing in to admit'fluid from the tank 1 and to close to prevent a reverse flow. A nut 13 closes the top 'of the casing and may be removed to-give access to the-valve. A com- A check a pressed air pipe 18 leads through the top -a point above the bottom of the tank. 3 up through the cap 16 to the top of the tank 1. The tank 1 is also provided with a vent 20 in its top. I On the lower end of the pipe 19 a collar 21 is secured. A displacement valve22 is hinged to the collar. A float lever 23 is under side of the valve and lar end of the lever;.while a similar mem-- ber 24, but much smaller, is fastened to the short end of the lever. When the liquid in the tank 3 falls to-a low level the member 25 being slightly heavier swings down and thus seats the valve 22 against the collar 21. How'ever when the ressure tank is filled with liquid the mem..er 25 being considerably larger than the member 24 1S displaced upwardowing to its greater liquid displacement, thus holding the valve open. A valve casing 26 is included in the pipe 1-9 in the tank 3. .This casing contains a check valve 27 which opens upward to permit the discharge-of liquid but seats to prevent a reverse flow.

It will be seen-that compressed air, being admitted to the pressure tank from the pipe 18, will enterthe-tube 15 and seat the valve 14. The valve 22 being open, liquid in the pressure tank will thus be forced out through the pipe 19. lVith the valve 14 seated no air can enter the storage tank. As soon as the air is'cut off from the pressure tank the liquid will stop discharging and when the pressure is relieved the check valve 27 will seat thus preventing the liquid in the pipe 19 above said valve from flowing back into the tank. When the liquid in the pressure tank is above the low level the displacement valve will occupy the position shown in ,dotted lines in Fig. 3, but when said liquid reaches the low level the valve will close as is shown in full lines in Figs. 1 and 3 thus preventing air entering the discharge pipe 19, the lower end of which is at all times immersed. The air pressure being cut off, the liquid in the storage tank 1 will unseat the valve 14 and fill the pressure tank.

What I claim, is:

' 1. A liquid storage and dispensing apparatus, comprising a storage tank, an inlet pipe leading into'the storage tank, avalve to close the inlet pipe, floatcontrolled means to close the valve when the liquid reaches a predetermined level in. the storage tank for permanently maintaining a space in the upper portion of the storage tank, a pressure tank arranged near the stora e tank, a supply pipe having one end leading into the pressure tank and its opposite end leading into the storage tank, a check valve to close the supply pipe and seated by pressure within the pressure tank, an outlet pipe leading into the pressure tank, float control means to close the outlet pipe and arranged within the pressure tank, and a pressure supply pipe leading into the pressure tank..

2. A liquid storage and dispensing apparatus, comprising a storage tank, an inlet pipe extending into the storage tank and 1 having its lower end arranged near the bottom of the storage tank, a valve to close the outlet end of the inlet pipe, a float arranged within the storage tank and connected with the valve and adapted to close it when the liquid level in the storage tank reaches a predetermined height for maintaining a permanent spacein the top of the storage tank, a pressure tank arranged beneath the storage tank, a supply pipe having its lower end within the pressure tank and its upper end within the storage tank, a check valve within the supply pipe and closing toward the upper end of the supply pipe and being seated by pressure in the pressure tank, an

outlet pipe leading into the pressure tank and having a check valve, a float controlled valve to'close the intake end of the outlet pipe, ant a pressure supply pipe leading into the pressure tank.

' 3. A liquid storage and dispensing ap-. paratus, comprising a storage tank having an opening in its lower portion, means for supplying a liquid to the same, a pressure tank having its upper end secured within the opening of the storage tank, a head closing Y the upper end of the pressure tank and prosi nature. AT ON.

Images