Patent GB-190822243-A (GB)
Title: Improved Meter particularly applicable for Liquids.
Inventor: ESPENHAYN WILHELM
IPC: G01F3/28
Filed: 1908-10-20
Granted: 1909-10-14
Abstract: 22,243. Espenhayn, W., and Hunger, F. O. Oct, 20. Liquid - meters.-Apparatus for measuring liquids, and pasty and granular materials, particularly the feed - water supplied to steam generators, comprises a pivoted measuring-vessel a u t o - matically operating the liquid - supply valve so that before the complete filling of the tilting vessel the supply of liquid is diminished. Fig. 3 shows a sectional view of the apparatus, the tilting vessel 3 being mounted on the shaft 2 which itself rests on the rounded ends of pivoted levers 1<a>. The vessel 3 is divided into two compartments a, b, and is fed from a trough 7 by a channel 9 which is closed by a pivoted valve 10 as shown in Fig. 9. This valve is operated by the segment 14 secured to the shaft 2, Fig. 4, the projections 16 on the segment acting on the rod 19 secured to the pivoted lever 21 which itself is connected to the valve 10. When the roller at the end of the rod 19 is on the curved part 15 of the segment, the valve 10 is closed save for the liquid which can pass through the small orifices 12, 13, in the valve 10. Another segment for operating a counting-device is also placed on the shaft 2. Two pivots 25, 26 are fitted to the casing 1 for the purpose of holding fast the vessel 3 in the position in which one of the openings 6 is placed under the; inlet channel 9 for permitting the sinking of the gradually-tilling vessel and preventing the upsetting thereof until it is exactly filled. These pivots carry projections 27, 29 inside the casing which can move freely upwards, but only downwards by acting against the weighted levers 28, 30. A bar secured to the tilting vessel near each outlet 7<a> passes the pro. jections on the up-stroke and rests first on the projection 27 until the weight of liquid in the compartment is sufficient to overcome the effect of the weighted lever 28, when it slips past the projection 27 and rests upon the projection 29. The lever 30 is prevented from tipping through the shock, by the action of the pivoted lever 33 actuated by the lever 28. The lever 33 carries a stop 35 which momentarily locks the ends of the lever 30. By the slight tilting action of the vessel 3 the valve 10 is closed and liquid continues to flow through the orifices 12, 13 until the weight is sufficient to overcome the action of the lever 30, when the vessel 3 tilts sharply and discharges its contents into the water trough, at the same time opening the valve 10 to supply liquid to the other compartment. In the modification shown in Fig. 11, a single weighted lever 41 performs the functions of the levers 28, 30. The pivot 40 is provided with the projections 42, 43 and the vessel is provided with two bars 44, 45. At the commencement of the filling operation the bar 45 rests on the projection 43 and in slipping past it forces the lever 41 over on to the projection 46. The weight 49 in touching the projection 50 momentarily tilts the lever 47 so that the rod 48 locks the end of the lever 41. In the new position, the projection 44 rests on the projection 42 until the weight of the liquid in the vessel is sufficient to tilt the lever 41 again, and to cause the discharge. To allow for the pressure of the water passing through the orifices 12, 13 in the case of a high-pressure supply, valves 51 are fitted to the orifices 12, and are controlled by floats 53. Projections 54 are provided on the valve spindles so that the rods may rest on the cover when this is raised. Control weights can be fitted to either compartment, the weight of which corresponds to the weight of the quantity of liquid &c. necessary to tilt the vessel.