US429313A - moors - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

B. P. MO'ORS.

GAS METER.

PgttentedJune s Fig.1.

(No Model:) 2 Sheets-Sheet 2.

B. P. MOORS.

GAS METER.

No. 429,313. P teg June 3, 1890.

UNITED STATES PATENT OFFICE.

BERNARDUS PETRUS MOORS, OF HAGUE, HOLLAND.

GAS-METER.

SPECIFICATION forming part of Letters Patent No. 429,313, dated June 3, 1890.

Application filed $eptember 20,1889- Serial No. 324,585. (No model.) I

To all whom it may concern:

Be it known that I, BERNARDUS PETRUS MOORS, a subject of the King of Holland, residing at Hague, in the Kingdom of Holland, have invented new and useful Improvements in Wet Gas-Meters, of which the following is a specification.

My invention relates to improvements in Wet gas-meters of the ordinary well-known kind, whereby all the defects adhering to these apparatus are obviated-such as the possibility of taking unmeasured quantities of gas from the meter, the inconstant water-level in the meter, by which it is impossible to measure in an exact manner, and the lamps are caused to flicker when the siphon becomes filled. The repeated filling of the gas-meter provements the water-level of the gas-meter.

is rendered constant and the measuring operation may be effectuated with a nearly mathematical exactness; the descending of the water-level, caused by the evaporation of the water in the gas-meter, is continuously compensated by the Water contained in the reservoirs arranged in the fore compartment of the gas-meter; the rising of the water-level, caused by condensation of water-vapor, is prevented by a tube that leads the superfluous water into the water-box; the height of the water-level in the gas-meter may be observed at any moment, while there are no apertures through which unmeasured quantities of gas may be taken from the meter.

In order to enable my invention to be fully understood, I will proceed to describe the same by reference to the accompanying drawin gs, in Which-- Figure 1 is a front view of the gas-meter, having the front wall of the fore compartment and the Water-box removed. Fig. 2 is avertical section on line A B of Fig. 1. Fig. 3 is a horizontal section of the fore compartment on line C D ofFig. 1; and Figs. 4, 5, 6, and 6 show details of the gas-meter, partially in section. Y

The back chamber A with the drum of sheet metal 13, the shaft a of the latter carrying on its part projecting into the fore compartment the worm b with the toothed wheel c, the spindle c in the socket d, and the counting device g with the liter-Wheel f, and those parts on which the above-named organs rotate, are constructed in the same manner as in the well-known wetgas-meters, while some other details are also of the same construction, but not shown in the drawings, for rendering the latter more intelligible.

Underneath the fore compartment 0 is, as usually, the water-chamber D, communicating directly through the bent tube E with the said compartment 0. The mouth of this tube is situated as close as possible to the partition-wall and very near to the lowest allowed water-level in the gas-meter, which is indicated in the drawings, Fig. 1, by line w x. The tube E, made of easily-flexible metal, is secured in the bottom of the box and suspended by means of the rod F on the cover of the v compartment 0. At both sides of this tube, on the cover of the fore compartment 0, are arranged two water-reservoirs G and H.

The reservoir H, projecting deeply below the water-level, contains a float K, while the other reservoir G is above the water-level and serves for filling the gas-meter and for maintaining the water-level in the gas-meter at a constant height.

In the upper part of the reservoir H is a pipe K, having a square angular section and leading from the mouth of the gas-supply pipe, which is furnished with a cock M to the valve-chamber N at the right hand of the reservoir H, and projecting, like the latter, below the water-level. The valve 0 is supported in the valve-chamber N by a circular seat, under which is situated the mouth of the siphon P. The latter extends, as in the usual known wet gas-meters, deeply into the water-chamber D, while a knee-pipe adapted to the said siphon passes through the partition-wall and projects through an aperture arranged in the drum B above the water-level into the fore space of the drum. By this means a direct connection is established between the valve-chamber N and the fore space of the drum B. It is therefore impossible that any quantity of gas penetrates without being measured into the fore compartment 0 or into the water-box D.

The valve 0 is by means of a hinge fastened to the rod R, (see Fig. 1,) passing through an opening arranged in the bottom of the chamber N, while the other end of the rod R is secured to a beam S, not far from the fulcrum of the latter. The float K is connected by the rod R with one end of the beam. For this purpose a small opening 0' is arranged in the bottom of the reservoir H, through which passes the rod R. The other end of the beam is connected with the rod R passing through the reservoir G and projecting into an air-tight closed small box 11, where, by means of a lever h, it rotates the shaft a, carryin g the hand \V, and moves the latter on a dial-plate arranged in front of the box H. The socket 1' made of sheet metal, surrounding the rod R projects below the water-level.

m 00, and is hermetically cut off from the res ervoir G. The float K, of cylindrical shape, has a flat or somewhat hollowed bottom. It is firmly secured to the rod R and moves between the vertical guide-rods s s.

The reservoir G is provided with an orifice through which the gas-meter is filled. The orifice is closed by a filling-screw V. To the bottom of this reservoir isfastened a short pipe (1, projecting below the water-level a: w. A chamber c, containing the pipe E, is arranged in the reservoir G. One end of the pipe E, made of easily-flexible metal, is secured in the vertical wall r and discharges into the reservoir, while the other end, which is bent, is connected, like the pipe E, with the rod F, and extends about 1.5 millimeters above the mouth of the pipe E. The two pipes E and E are in this way firmly connected with the rod F, and the height of the same is adjustable between certain limits. After the said pipes having been adjusted by experiment,- and after the nut on the upper end of the rod F and this red itself having been soldered to the cover of the fore compartment C, as shown in Figs. 1 and 2 of the accompanying drawings, the position of the pipes E and E cannot be altered by removing the gas-meter from one place to another, or by any other cause. The pipe (Z situated above the cover of the fore compartment 0 in the counting-box, puts the two reservoirs G and II in communication with each other, so that the pressure in the reservoir Gr is equal to that in the reservoir 11.

The connection between the fore and back compartments established by means of a small opening 0 arranged in the lower part of the partition-wall. All the other openings in. the latter below the water-level, as the opening through which passes the shaft a, are as small as possible. By this means 1 attain that a difference of the water-level in one of the two compartments cannot be transmitted immediately to the other compartment.

The measured gas flows through the opening 0 Figs. 1 and 2, arranged in the upper part of the partition-wall, from the back compartment A into the fore compartment 0, an d thence through the pipe E into the waterchamber D. The gas-delivery pipe, provided with a cock M, is attached to the top of the back compartment A.

As illustrated in Figs. 1 and 2, a rectangularly-bent tube 00 w is horizontally arranged at a suitable height 11 3 Fig. 1, on the front wall of the water-chamber D. Fig. 4 shows a top view of the tube 00 as, closed at as, and provided only at its lower wall with a small opening :0 while at as the tube is closed by means of a screw-stopper V.

At a short distance from the opening 00 a vertical partition-wall m n is arranged in the tube, extending not entirely up to the horizontal axis of the tube, and having for its purpose to prevent that the opening m be accessible from the outside, whereby the waterlevel in the water-chamber D could be influenced by incompetent persons.

Near the mouthscasmall conical backward overhanging pipe 19 is arranged on the tube an as, through which air is introduced into the water-chamber D when water is flowing out therefrom. Should the pipe p be choked, it may easily be cleaned after the screw-stopper V has been screwed 0a.

As hereinafter will more fully be described, the gas-meter works in such a manner that when used by reliable persons the valve 0, with the rod R, may be dispensed with; but in this case a device must be applied for sealing the filling-screw V or for rendering it illaeoessible. For this purpose a flange z, with holes 1', isarranged above the opening, and the fillin 'screw is provided with threads for screwing thereon a hollow screw-head V such as represented in vertical section in Fig. 5. similar flange 2, having also three or four The screw-head is provided with a holes 1'. For sealing the opening, a lead wire may be drawn through the holes 1', being situated one over the other, and the ends of the said wire may be connected with each other by means of a seal.

In the gas-meters now in use the counting device is soldered to the gas'meter, so that the gager cannot examine the counting apparatus. I have made an arrangement by which the counting apparatus can readily and easily be removed and examined.

Fig. 0 is a front view, partially in section, of the counting device, and Fig. 6 a side view of the same.

The two flat bars 6 e, connecting the two plates g of the counting device with each other, are provided each with two conical holes 1' 0'. Upon the cover of the compart ment 0 are arranged at a suitable distance from each other two vertical supports a a, each of which is provided with two round vertical conical points. The two holes 0' '1' receive these conical points. So a sidcwise movement is prevented.

In order to prevent a rising movement be tween the two rods of each support a, a strong spring 1 is arranged, provided with a triangular cam q, Figs. 6 and 6 which hold the horizontal bars down on the supports two. By these means the counting device is firmly secured upon the fore compartment 0, and it may easily be removed in orderto be revised by bending sidewise the springs q q.

To put this gas-meter in action and to fill the same, the cooks M and M are closed and the screws V and V are screwed off. The water poured in at V flows then through the reservoir G into the fore compartment 0, and thence through the opening 0 into the back compartment A. As soon as the water has risen up to the line :20 x it passes through the pipe E into the Water-chamber D until it flows over at at, whereupon the opening at x is closed. When still more water is now poured in, the level of the latter will rise by the height of the convex meniscus formed at the mouth of the pipe E. The mouth of the pipe E, which is so much higher, is closed. The air is then compressed in the compartments, and the water will rise in the reservoirs until it flows over at V. This opening is then closed, and the water which may have entered still into the water-chamber D through the pipe E is evacuated through V. In the meanwhile the float K is raised by the water mounting in the reservoir H, and has opened the valve 0, so that when the cock M is' opened the gas is free to enter. After having opened, then, the cock M the gas-meter is put in action.

When by any causesuch as indicated in the beginning of this specificationthc water-level in the fore compartment C has fallen just below the lowest allowed level 00 00, the convex meniscus at the mouth of the pipe E will be broken and gas will pass into the reservoirs, forcing the water out of the latter. Water will enter then from the reservoirs into this chamber until, by the rising water-level, the convex meniscus is formed again at the mouth of E. When the water-level rises higher than the height of the meniscus at E, the excess of water will flow into the waterchamber D. The limits between which these two levels move are very narrow, so that the level may be considered almost as a constant one. I am enabled by this means to measure the gas very exactly. The dimensions of the reservoirs are so chosen that the differences produced by evaporation can be compensated at least during six months.

As it is not probable that in weltconstructed 'fided to the care of honest persons.

gas-meters the water-level will fall below the line :r qo, an'd that the reservoirs G and Hwill become entirely empty, and as the gas-meter is to be filled only once a year, as already has been mentioned, the valve 0 and the rod Rmay be dispensed with when the gas-meter is con- The costs of manufacturing the gas-meters are considerably reduced by this; but in this case the screw V is to be covered with the above-described screw-head, (see Fig. 5,) and their flanges z and z are to be sealed together. Should, however, within this time the water fall below the line mm, the hand W, connected to the beam S, will indicate this immediately, and the reservoirs arethen to be filled again in the above-described manner.

Unmeasured gas cannot enter the fore compartment O or the water-chamberD, orbetaken out from the latter through openings arranged therein. The gas-lamps are prevented, fur thermore, from flickering, as the water cannot ascend up to the point where the two branches of the siphon P meet. A decrease of gaspressure cannot take place in this gas-meter more than in an ordinary one.

The way of fixing the counting apparatus enables the gager to revise and examine the apparatus very easily, whereby a security is. affordedagainst a faulty construction of the apparatus and an exact measuring attained.

Having now fully described and ascertained the nature of my said invention, I claim and desire tosecure by Letters Patent- 1. In a wet gas-meter, the combination of two reservoirs G and H, one of which projects below the water-level, while the other is arranged above, with pipe (1 connecting the two reservoirs,substantially as specified. 7

2. The combination of reservoir Hwith float K within the same, and with rod R, lever S, rod R, and valve 0, and with rod R lever h, andindicator W, substantially as specified.

3. The combination of reservoirs G H with pipes E E, rod F, connecting said pipes, and with compartment 0 and water-chamber D, connected by pipe E, and with reservoir G, inclosing pipe E, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BERNARQUS PETRUS MOORS.

Witnesses:

A. DOYER ZYN, A. SHLocER.

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