DE151833C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

- Yes 151833 CLASS 59 c.

With the compressed air liquid lifter according to patent 149527 with two with the compressed air control slide (directly or indirectly) connected piston respectively. Membranes are those Spaces in front of and behind the piston respectively. the membrane together to one of the air pressure lines connected between the valve body or the like and one of the liquid containers, and in the part of the line in question that connects the spaces below a throttle device is switched on, the when the entire line is depressurized (after the relevant liquid container has been completely emptied) a pressure difference causing the movement of the piston or the diaphragm in the direction of the required reversal causes between the two rooms.

The present invention now differs from the subject matter of the main patent by improving and simplifying that instead of two 'reversing devices only such a device is required, without the rest of the operation of the whole thing in any way will be changed. This simplification can also be done either with pistons or with diaphragms work, but only one piston or only one membrane is used.

In the case where no piston is used, the device can also be equipped with two. Diaphragms work. The subject of the main patent has four membranes, two of which each belong to a reversing device.

Two example embodiments of the simplified type of compressed air liquid lifter are shown in the drawings in a schematic representation.

In Fig. Ι the compressed air occurs through the tube α in the valve housing b and goes from this either into the tube c or into the tube d, depending on the position of the reversing slide e. The two liquid vessels (not shown), which are alternately filled and emptied, are connected to the tubes c and d in a known manner.

From the valve body b , the compressed air is guided through a pipe f to two lines g and h which open into spaces 2 and k of the cylinder /. The piston m of this cylinder is connected to the slide e by means of the rod η . At the junction of the tubes f and g there is a cock 0, the plug of which is provided with an arm ρ. The cock ο is connected by a piece of pipe q to a similar cock r, the cock of which carries the arm s. The arms ρ and 5 are connected to one another by a link t , so that

Claims (1)

both chicks can only be rotated simultaneously and evenly. This rotation is by a respectively on the piston. Slide rod η causes pin u , which moves between the arms ρ and s with a certain dead speed and only hits either ρ or s in the end positions, thereby turning the chicks of the two taps ο and r at the same time. The cock ο is designed in such a way that the connection between f and q is never changed, but the connection between f and g is changed, provided that once the full free passage is available, but the other time there is a rather considerable narrowing of this passage, so that. there is still a connection between f and g , but the air passing through is then throttled quite considerably. The valve r works in exactly the same way with regard to the connection of h and q, namely with the valve r the full free passage is available when 0 is in the throttle position, whereas the throttling with the valve r occurs when between f and g there is full free passage. When the parts are in the position shown, the valve r is in the throttle position. The compressed air flowing over from the pipe α to the pipe c has passed from the valve housing b through the pipe / also into the lines g and h, i.e. also into the spaces i and k of the cylinder I. The compressed air flowed in faster in i than in k because it was throttled in tap r. During the time in which the vessel connected to the pipe c has been emptied, so much compressed air has flowed over into the space k that the same voltage is in it as in the space i . Since, after the vessel in question has been completely emptied, a certain relief occurs in the entire compressed air line due to the elimination of the resistance present up to then, this relief is also noticeable in the entire reversing device, ie there is a certain outflow of compressed air from spaces i and k through the lines g and h to the pipe /, but this takes place more quickly in room i than in room k because the tap r is still in the throttling position. As a result, it occurs within a very short time such overpressure in the space k in relation to the space i that the piston m is displaced to the left by this overpressure until a stop located on the piston rod prevents it from further movement. Shortly before the piston reached this other end position, however, the pin u hit the plug arm ί and turned both plugs in such a way that the cock r now creates a free passage between h and q , but the cock ο the passage between g and / has throttled, so that now the opposite conditions are found as before with the taps. When the piston m is moved to the left, however, the control slide e has also been brought into the other end position, so that the compressed air now flows over to the tube d and empties the vessel connected to this. When the discharge then occurs again, this is again noticeable in lines g and h , but now the discharge in room k takes place earlier than in room i, because now it is not valve r, but valve 0 that is throttling works. As a result, there is now an overpressure in i and the piston m is shifted to the right, so that the parts are then again in the position shown in the drawing. The tap ο does not necessarily have to form the connection between f and g , rather the pipe section g can be connected directly to the pipe /, in which case the taps 0 and r can be of exactly the same nature. An embodiment in which this is the Is the case and in which a membrane is used in place of the piston, in particular, is shown in FIG. The same letters in this figure mean the same parts as in Fig. 1; the way it works is also exactly the same as in the case just described. It is only to be mentioned that the membrane m does not act directly on the slide rod η , but by means of a rod n ^{l connected to} it first on an angle lever n ² , the longer arm of which alternately hits rollers u ¹ « ² , which are attached to the rod η are located. The use of the membrane in place of a piston brings here as well as in the main patent the peculiarity that the membrane BEZW by itself after each influence. Returns to rest position, whereas the piston always only the. occupies one or the other end position. In any case, further explanations should not be necessary for an understanding of this embodiment, since everything else behaves exactly as it has already been described with reference to FIG. ' Patent-A ν saying: Compressed air liquid lifter according to patent 149527, characterized in that the Control slide rod instead of two reversing devices (one for each direction) cooperates with only one, which is divided by a piston or a membrane into two pressure chambers (ik) , which are connected to each other and each provided with a throttle element (or) , which are inevitably controlled alternately by the control slide, so that the piston or the diaphragm can be influenced from each side by a pressure difference and the slide is reversed in both directions. For this purpose ι sheet of drawings.