DE75636C - Flushing device for waste pipes and the like - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 85: aqueduct.

Patented in the German Empire on July 21, 1893.

The purpose of the "flushing device" is to clear blockages in waste tubes when the ordinary flushing of water through such waste pipes is insufficient to remove them.

This purpose is achieved by the fact that, in addition to the usual rinsing device, a Branch water pipe derived from the pressurized water pipe and laterally connected to the waste pipe becomes, that in the latter full pressure by water supplied from the branch line mentioned, as it is by simple flushing is never reached, to which the clogging in the waste pipe must give way.

An automatic back pressure flap is used to achieve this pressure, which is attached in such a way that it usually closes the pressurized water branch line Adjustment of the branch line but raised by pressurized water flowing out of the latter and is then raised by the water pressure in the waste pipe to such an extent that that it closes off the waste pipe at the top, whereupon the full pressure of the water pipe in the waste pipe is used with the stated intended effect.

In Fig. Ι the device is in its simplest Form shown in vertical section.

B is the waste pipe, which is connected at the top to any pipe through which the usual flushing of the waste pipe takes place. The latter is connected to the side of the pressurized water line C, which is turned on by means of a tap F when a blockage in B has to be cleared.

At the confluence of the water pipe C in the waste pipe B , the back pressure flap A is attached in such a way that it is lifted by the pressurized water from C ; if the latter fills with water due to the blockage in tube B , flap A is raised so far that it finally comes into a horizontal position and tube B closes off at the top. Now the full pressure of the water from C acts in tube B and pushes the blockage away.

So that the pressure in B does not exceed the degree permissible for the pipe wall thickness, it is advisable to install a small, spring-loaded valve a in the back pressure flap A , which opens upwards when the permissible pressure is exceeded.

In Fig. 2, 3 and 4, the marked arrangement is shown attached to a water closet, for example. The waste pipe B connects to the basin D at the top, while it is connected at the bottom to the water valve E , which can also be equipped with a backflow flap G. Basin D and waste pipe B are usually flushed through pipe C ^1.

If a blockage is to be pushed through in the tubes B and E , as described above, the valve f is turned so that C 'is closed, whereas the branch line C is opened, whereupon the above-described process of generating pressure in the tube B is completed upwards through flap A. It is recommended that the pressurized water supply pipe C tightly to let open out under the basin D in the flue pipe B.

In order to use a measured amount of water both for the regular flushing of the basin D and for pushing through a blockage in the pipe B, a device shown in FIGS Mainly from a cylinder H with guided piston /; consists; the latter has an opening / j ¹ . The cylinder is in communication with the pressurized water pipe string / above the piston.

A tube h ² branches off from the tube / before it opens into the cylinder space below the piston, which opens up into the cylinder space above the piston. In the pipe I is a flap ³ h, mounted a flap / i ⁴ in the pipe / i ^2, both of which can be opened in the direction of the pressurized water run.

Assuming that, with the taps f and f ^{1 closed,} the cylinder H and the branch pipe h ' ² have filled with water, the piston h will have sunk to its lowest position by its own weight.

If you now open the cock / ¹ , for example, the pressurized water in the pipe / will first lift the flap h ³ and shut off the pipe / 1 ² at the bottom, then lift the piston h and the measured amount of water in the cylinder H into the pressure pipe C and keep pushing until the piston in the top of the cylinder closes the outlet. When the piston rises, it pushes the flap / 1 ⁴ in the branch pipe / z ² back onto its seat, which closes it off here. If cock f ¹ is closed again, the piston sinks again under its own weight and the space above it can be filled again through pipe h ^2. ,

Claims (1)

Patent Claims: A device for removing blockages in waste pipes (from closets, cesspools, etc.) through the full pressure of a pressurized water pipe, characterized by a back pressure flap (A) at the point where a pressurized water pipe joins the waste pipe, which flap closes the pressurized water pipe when the waste pipe is regularly flushed Using the latter, however, closes the waste pipe upwards, so that the full pressure of the water in the waste pipe can take effect.
The equipment of the back pressure flap (A) mentioned in claim 1 with a safety valve (a) in order to prevent the pressure permissible for the waste pipe from being exceeded.
In the flushing device characterized in claim 1, the switching on of a Mefsapparates in the pressurized water line for the amount of water required for flushing or to remove the blockage of the waste pipe, consisting of a cylinder (H) with a piston (h) and a small opening guided in it from a branch line (h ² ) equipped with two back pressure flaps (h ^B h ^l ), which connects the pressurized water pipe with the latter above the piston before it enters the cylinder. 1 sheet of drawings.