DE40127C - Rotating air pump - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention relates to the construction and arrangement of a rotary Air pump, which is used to remove the air from vessels such. B. the glass bells for electric light bulbs, or in connection with condensing devices as air pumps can be used by steam engines.

The apparatus is illustrated in the accompanying drawing.

Fig. Ι is a vertical section and

Fig. Ία a basic pattern of a rotating, according to of this invention.

Fig. IB is a vertical section showing a Modification of the apparatus illustrated.

Fig. 2 is a vertical section of a rotating device constructed in accordance with the present invention Pump in connection with condensing devices, to be used as an air pump in steam engines to act.

Fig. 3 is a view, partly in section, of a modified form of the air pump for a steam engine.

Fig. 3 α is a plan view of the upper disk and

Fig. 3 β a plan view of the lower disk.

A in Figs. 1 and ia represents a vessel containing mercury which is provided in the center with a hollow lug B from which curved tubes C of small inner diameter extend upwards and outwards to an annular groove D towards them. From the center of B a tube E rises up through a store into a solid tube F which is connected to the bell jar or other vessel from which the air is to be removed.

A cup-shaped vessel G is filled with mercury, which rises in the ring-shaped space between E and F and creates a hydraulic seal, the height of the column being so dimensioned that it is sufficient to cover the difference between the external and internal pressure balance.

When the vessel A and the apparatus in it are set in rotation in the direction of the arrow, the mercury contained in the vessel passes through the openings b into the tubular part of B, through narrow channels in the stopper or stopper b ¹ and thus enters the tubes C in separate and successive quantities. These individual quantities of mercury are driven along the tubes by the centrifugal force, and each part forms a liquid piston, which part of that descended through the tube E and pushes air that has entered the tubes C in front of it. The mercury emerges from the tubes C into the ring-shaped channel D, from which it overflows into the container .4 and flows back to the middle part of the latter, in order to then enter the tubes C again. The air carried along the tubes C by the mercury exits at the edge D and

escapes through openings which are made in the lid of the container. If the whole apparatus is now brought into a chamber from which the air has already been removed by means of an ordinary air pump so far that the pressure acting against the outflow along the tubes C is considerably below atmospheric pressure, the rotating pump works even at a moderate pressure Speed and produces a high degree of vacuum.

Apparently, instead of mercury, a metal which is liquid at a moderate temperature can be used will; in this case the apparatus must be kept sufficiently hot to to maintain fluid state.

In the modified construction of the pump shown in Fig. 1b, the lid O of the container is fixed and a plate S is fixedly suspended from it; The mercury that has come out of the tubes C runs along this plate S and returns through narrow openings into the hollow space of B.

In Fig. 2 water enters through a shower H , meets the steam coming through the tube F and condenses the latter. The injection and condensation water enters the hollow part of B with the air present, is expelled by the rotating tubular arms C, flows through the hollow channel D into the container K, from where it enters. Part of the water required to feed the shower H can be removed. The container K can extend right under the pump, and the water can also enter the hollow space B from below through shower H instead of from above and flow out through a shower in the channel opening into B.

In the device shown in FIG. 3, both centripetal and centrifugal force are used. In an upper container L, in which the steam entering at F is condensed by water flowing out of the shower H , there is a rotating disk M, shown in outline in Fig Water is driven along these channels towards the hollow centers.

The water fliefst by a tubular shaft B through a check valve to a second, in Fig. 3 β in Grundrifs shown revolving disc N, which, that with curved backward, so that the disk M opposing channels provided so the water, these channels is driven along outwards. It goes without saying that either the upper part of this pump, in which the centripetal force acts, can be used alone, or the lower part, which acts with centrifugal force, or both together, as shown in Fig. 3.

Claims (2)

Patent Claims: 1. A rotating air pump, consisting of a rotating container A, in combination with a hollow axis B located in A , into which mercury and air are introduced, and to which tubes C are attached in such a way that the mercury and the air are brought together by centrifugal force sucked out of the axis B through the tubes C and from these into the container A , from which the extracted mercury is reintroduced into the axis B while the air escapes from the container, Fig. 1, ia and ib. 2. The transmission of the under 1. Device on condensation steam engines for condensing the outgoing steam and. Generation of the necessary Vacuums: a) by the apparatus shown in FIG. 2, in which the mercury in B is replaced by condensation water flowing in with the exhaust steam from the machine, which expels the air present through the tubes C and itself flows into a container K ; b) by the apparatus shown in Fig. 3, 3A, 3 β, in which instead of the tubes C a horizontal disk, seated on the upper end of the axis B , provided with channels leading to the hollow axis B and curved in the direction of rotation M or a second disk N similar to M , but provided with channels curved in the opposite direction, is arranged at the lower end of B at the lower end. For this purpose ι sheet of drawings.