US1348384A

US1348384A - Antibursting and antishock device for tanks, pipes, &c.

Info

Publication number: US1348384A
Application number: US275238A
Authority: US
Inventors: Verre John
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-02-05
Filing date: 1919-02-05
Publication date: 1920-08-03
Anticipated expiration: 1937-08-03

Description

1. VERR E. ANTIBURS TING AND ANTISHOCK DEVICE FOR TANKS, PIPES, 6L0,

APPLICATION FILED FEB-5,1919.

Patented Aug. 3, 1920.

i 4 III/Ill WA TER //I fall! WITNESSES.- fizaggw IN V EN TOR. fia f UNITED STATES PATENT OFFICE.

JOHN VERSE, 0]? PHILADELPHIA, PENNSYLVANIA.

ANTIBUIBSTING AND ANTISHOCK DEVICE FOR TANKS, PIPES, M.

I devices designed to protect tanks, pipes, etc.,

against bursting by freezing of the water 10 therein, and against the damages caused, particularly in water pipes, by sudden clos-' ing of cocks; and 7 One object of my invention is an air-- chamber formed by a cylinder, having its lower end located in the center of the tank and the upper end out of it, topped with a tightly closing cap; the cylinder being attached to the top of the tank, at an intermediate point of its own length, where it is provided with an enlargement, screw-threaded to fit the screw-threaded opening of the vtank; a slidable piston being air-tightly mounted within the air-chamber.

And a further object of my invention is a supplementary cylinder of the same kind and size of the air-chamber which is the object of the previously described feature; sald cylinder to be eventually jointed to the top of the same air-chamber, tightly closed at the upper end by a cap; said cylinder being of a given calculated length; or else a set of such cylinders of diiferent length to cope with the different needs when the water in the tank is subjected to increased pressures.

And a further object of my invention is a vertical air-chamber, cylindrical in shape, tightly closed at each end by a cap; with a piston slidably mounted and having an air-tight engagement with the interior of the cylinder; communicating with the interior of the tank by a nipple or nipples connected together, with one end of said nipple screwed at the lower cap of the air-chamber and the other end located in the center of the tank, passing through the wall of the tank, where it is also screwed, at any spot of the same tank, provided the lower end, located in the tank, be at a lower level than the level ofthe other end. screwed at the bottom of'the air-chamber. i

All these attachments may easily. be apo pipes.

the invention consists in the construction,

i co mbin'ation and arrangement of parts here- Specifleation of Letters Patent.

Patented Aug. 3, 1920.

Application filed February 5, 1919. Serial No. 275,888.

inafter described and claimed and illustrated in the accompanying drawings, wherein Figure 1 is a vertical sectional view of a tank, equipped with the air-chamber, the same air-chamber protruding out of the tank.

Fi 2 is a vertical sectional view similar to Fig. 1, where the air-chamber has an increased capacity, by means of a supplementary cylinder jointed to the top of the airchamber. A

Fig. 3 is a vertical section showing a tank equipped with the air chamber, which lies entirely out of the tank, but in communication with the interior of the tank.

Referring more particularly to the drawings by letters to designate the correspondin parts of the several views,

i 1 1s a vertical section of a tank T to whicn the air chamber C is attached, screwed at an-intermediate point of its own length to the top of the tank, having its lower end in the middle of the tank, and, the upper end out of same, tightly closed by a cap K, a piston P, formed by a disk of cork d or any soft material, or wood lined, with cork or a metallic frame lined'with cork or any other soft and tough matter, firmly attached to the top of a thinner disk of metal m; a cap ff, open in its middle, is screwed to the lower edge of the air-chamber, to hold the piston within the same air-chamber.

Fig. 2 is a view sim'lar to Fig. 1, where a supplementary. air-chamber C of the same kind and size of the air-chamber C though of any required length, is jointed at the top of the C closed by the cap K Fig. 3 is a vertical view of a tank T equipped with an air-chamber C (which in this case is attached to the top of the tank) by a pipe (or system of connected pipes) departing from the bottom of the air-chamber, where it is screwed, screwed-again to the wall of the tank (in this particular case to the top) and allowing communication of the lower end with the center of the tank.

The air-chamber is hermetically closed by a cap at each end; the lower end cap being pierced to receive the upper end of the pipe or system of pipes; a piston P is slidably mounted in the air-chamber, having an airtight engagement with its walls.

The air-chambers are cylindrical and in the cases of Figs. 1, 2, 3 must have a resistance to the internal expanding force, at least equal to the resistance of the tanks.

The pistons are made with a disk of cork or any other soft and tough matter, or any other matter lined with cork or any other soft and tough matter; the lower part of it being a solid and strong and heavy disk; both firmly attached together.

The purpose of the supplementary cylinders is to obviate the danger of bursting of the tank and air-chamber, when the water in the tank is subjected to an increased pressure.

To safely protect a tank or receptacle, the space left for the air in the air-chamber, when the tank is filled and working under pressure, must be at least 15 per cent. of the space left for the water; if, for any reason the pressure is increased, the air is compressed in a lesser space, impairing the safety of the tank; in order to give more space to the air, the supplementary air-chamber is to be jointed to the other one already attached to the tank, so that the same proportion 15 per 100 be restored.

It is easy to see how the dispositions of the attachment in Figs. 1, 2, 3 is recommendable, as it affords means to inspect, clean, repair the piston and the interior of the airchamber; or remove and change the entire apparatus; or add one or more supplementary air-chambers to cope with the new higher pressures; and how the attachment can be applied, as shown in Fig. 3 to a tank already completely built and in operation, with a great saving of work, time, and money, without dismantlingit.

'In reducing my invention to practice,

various minor changes may be resorted to in the construction, combination and arrangement of parts, without departing from the spirit and scope of the invention as claimed.

lVhat I claim for my invention is 1. An air chamber cylindrical in shape, screwed or otherwise attached to the top of a tank, having its lower end within the tank; and its upper end out of it and tightly closed by a cap and means closing the lower end.

2. An air chamber cylindrical in shape, screwed or otherwise attached to the top of a tank; having its lower end within the tank and its upper end out of it; with a cap tightly closing the upper end and a slidable piston tightly closing the lower end.

An air chamber cylindrical in shape, screwed or otherwise attached to the top of a tank, having its lower end within the tank and its upper end out of it and tightly closed by a cap; with a slidable piston tightly closing the lower end and a ring screwed or otherwise attached to the lower end of the air cham er; or four screws screwed at the same lower end, protruding somewhat within the said air chamber, to hold the piston within it.

In testimony whereof I have hereunto signed my name.

JOHN VERRE. Witnesses:

P. PUGGIERO, OARMINE VUsooLo.