DE57750C - New to the water level pointers with pierced screw valve spindles and ball valves - Google Patents

Description

IMPERIAL

PATENT OFFICE.

In the water level pointer of the invention described below, the penetration becomes the ducts leading to the boiler are easily made possible and the automatic ones Completion of the water level pointer achieved by a ball valve, which is easy to move is and. rule out failure. Here is a screw pin to close the Screw valve provided, its half turn to close the Durchstofskanals enough.

The water level indicator of the present invention differs significantly in this from the one described in patent specification no. 48001 shown device, that instead of the Ueberschraubmuffe to close the flow valve here an obliquely and eccentrically pierced one Screw pin is provided, and that the valve arranged there is replaced by a ball, which as a result of the arrangement two different wide inlet channels in the seat for steam or water easily plays and does not get stuck in her seat.

Compared to patent no. 35267 draws the subject of the present invention through the arrangement of the screw pin and the ball in the indicated peculiarly slotted ball guide.

Compared to patent no. 57065, the present arrangement has the same, properties outlined above and in relation to patent specification no. 48016 besides the peculiar one Ball seat still has the special facility, that a closable passage for the passage of the channels to the boiler is provided, which is closed by an eccentric screw pin.

The use of a is particularly characteristic of the subject matter of the invention large and small opening in the ducts leading to the ball valve, thereby achieving becomes, that in normal operations, when there is an equal one on both sides of the sphere Pressure is set, the ball is forced from its seat, while if the glass breaks as a result of the violent stream of steam or water entering through the larger opening the valve ball is thrown onto its seat.

The invention is shown in the accompanying drawing:

Fig. Ι shows the upper,

Fig. 3 shows the lower of the water level faucet heads in longitudinal section;

Fig. 2 shows a section according to xx, Fig. 1;

Figure 4 is a top view of the upper water level head;

5 and 6 show the device of the ball valve in longitudinal section and top view.

The two heads A and B, between which the water level glass C is inserted and fastened by means of the known union screw connection D , each have a chamber EE ¹ into which the steam from the boiler initially enters when the valves c are open.

The channel α respectively. b of the heads A and B can be closed by a valve c , which is moved by means of the spindle d and the handwheel c ¹ . The through-hole c of the high spindle d is closed by a screw pin f with a head, which contains a through-hole which is inclined in such a way.

specifies that in the one position (Fig. 2), when the screw head / is slightly unscrewed, the through-holes g, e and a lie in one line, on the other hand, when the screw head d is firmly tightened, the free passage through the same is interrupted.

When valve c is open, the steam occurs respectively. the water through the chamber E and over the ball valve h away into the chamber F respectively. G of the upper or lower water level head.

The ball valves hh are enclosed in a tube i , which has one or more wide openings at k and so in the chamber E respectively. E ^{1 is} screwed in, that its lower free end against the walls / the chamber E respectively. E ¹ applies.

At the lower end of the tube i there is one or a few openings m which, however, are significantly smaller than the openings k at the upper end of the tube.

Thus, if steam enters chamber E or water into chamber E ¹ and the water level glass is not broken, water and steam enter through openings k and I at the same time, communication between channel α and / or. b and the chambers F respectively. G is thus not interrupted, and the balls h assume any position in the tubes i. If, on the other hand, the water level glass breaks, the overpressure in the chamber E is respectively. E ¹ a great one-sided pressure exerted on the balls h , because the steam or water, in an effort to escape, passes in greater quantities through the openings k than through the openings m ; As a result, the balls h are pressed against their seat η with considerable force and close the water level faucet heads.

Claims (2)

Patent Claims: ι. On water level pointers with a screwed-through screw valve spindle and ball valves: the arrangement of the ball valves h in ■ tubes «with large and. small bore (k Mi), so that if the glass breaks, the steam entering through the larger opening k immediately hurls the ball h against the seat, whereas if the glass is not broken, the steam coming through opening m presses the ball h back from the seat. 2. On water level pointers with pierced screw valve spindles and ball valves of the type identified under 1.: the arrangement of obliquely pierced screw heads f for closing the screw valve spindles in such a way that in one position the through hole of the screw pin in the direction of the Durchstof-. channel is, in the other position, however, the Durchstofskanal is completely closed by the screw head. For this purpose ι sheet of drawings.