US108842A - Improvement in liquid-meters - Google Patents

Description

W. E. vSNEDIIIKER. ZSheets-Sheetl.:A

Liquid Meter.y No. 108,842. Patented Nov. 1. 1870.

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'Sh -sh W E. SNEDIKERl 2 Bets eet2 Y Liquid Meter. No. 108,842. Patented Nov. ll. 1870.

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entre eine Letters Patent No. 108,842, dated November 1, 1870; antedated October 29, 1870.

MF- IMPOVEMENT INI LIQUID-METERS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.- Be it known that I, WILLIAM E. SNEDIKnn, of the city, county, and State of New York, have invented anew and useful Improvement in Liquid-Meters, of which the following is a full, clear, and enact description, reference being had to the accompanying drawing forming a part of this specioaticn, andin which- Figure l represents a vertical longitudinal lsection of a meter constructed in accordance with mv im- In'ovement u l Figure 2, a plan of the same, with ,the lid or cover removed; v

Figure 3, a transverse section, taken as indicated by the line a' .tin iig. 2;

vFigure 4, a horizontal section, taken as denoted by the line y y in ligs.- l and 3, with the piston and main valve removed;

l Figure 5, a transverse section through the line z z in figs. 2 and 4;

Figure 6, a plan of the lid or cover of the: meter, detached;

Figure 7, a vertical view of the hub of diaphragm or piston; and

. Figure 8, an inverted plan or bottom-end view of' the same. v

Similar let-ters of reference indicate corresponding the lover,

parts.

The meter, which is the subject of this invention,l while. applicable to measuring various liquids or fluids, it will sullice here to describe as used for the measuring of water. The same is ot' a pendulum form of construction,and includes a reciprocating lever-diaphragm or piston, arranged to work within a measuring-chamber, of arched or sector-like form, and provided with a hub that has connected with it al pivot-pin, which constitutes the turning-axis or center of thelever-piston.

The principle feature of -the improvement consists in a combination, withthis reciprocating diaphragm or llever-piston, ot' a controlling-valve to the main valve,

said controlling-valve being operated by the piston, and serving to establish a rush of thewater or operating liquid on the main-valve, to throw the latter', which inain valve controls ingress and egress lof said liquid, to and from `the measuring-chamber. These valves inay be of any suitable form, straight or curved,l and be variously arranged; but it is preferred to construct the valve, which controls the main valve in theY hub of thc lever-piston, by making said hub of af valvular character; vand The invention includes a divided construction of said hub, whereby thc valvular portion of itis allowed to remain stationary for a portion of the stroke of the lever-piston, so tha-tj the passages which control the flow of the water in throwing the main valve are kept open the requisite length of time to securea perfectaction alike of the main valve and lever-piston.

Also, the invention embraces an arrangement of passages for establishing escape ot' water remaining in the valve-box toward the completion of the main valves stroke, after said valve has closed the port which provides for escape ot the main body of water used in throwing such valve.

Likewise, the invention includes a specific and ad- 'antageous combination or arrangement of passages in a meter, constructed to operate as described.

In the actompanyiug drawing- A represents the reciprocating lever-diaphragm or piston ofthe meter, the same being arranged to work within a measuring-chamber, B, of arched or sector'- Iike form.

This diaphragm is provided with a hub, C C', through l which is a pivot-pin, a, that constitutes the working axis or center of 'said diaphragm or lever-piston, and

which is here shown as occupying a .vertical position, but which'may be horizontal, and the lever-piston have an action or stroke similar to that of a pendulum. This hub (l C is formed hollow, but generally closed-at its ends, the lower one of which rests on and travels over the lower face of the chamber B. Itis preferably made in two, or upper and lower sections, U C", the lower one C', being fast to the pivot a, and

only being moved toward the completion of the stroke of the lever-piston, vthrough an arched projection, b, on'the base of the upper section C, (which is loose-on the pivot, but fast to the lever-diapln'agm,) coming in contact with either end, alternately, of a curved slot, Y

c, in the top plate-.or face ot the lower section O ot' the hub, said curved slot c being longer than the arched projection b, so that the lever-piston, with its hub-section (l, will perform a certain amount of reciprocating stroke in either direction beforeA shifting the lower hub-.section G', The object of thus dividing the hub, and making the one section, C, act as an intermittent driver to the other section, C', that has a valvular action, as hereinafter explained, will be made clear in due course of the general description. f

The motion of the'lever-piston A, that receives and discharges water from opposite sides of it alternately,

,is controlled by a valve, D, which isvpreferably of cnrvilinear form, vibrating on a lower horizontal center, d, within a valve-box ourense, E, against both inner sides'orfaces of which said valve movesin contact, to control ports or passages therein.

Two of these ports, e e', in. the front surface, against which thevalve works, are main inlets to the measuringchamberB, on opposite sides of the piston and other two 'ports ff', in the'same plane o1'.surface,`outlets therefrom, there being corresponding inlet and outlet-ports,

g g' and lt la', in the back or opposite surface; againstA which the valve works, which latter ports, y g and h h', are iu communication, respectively, with an inlet wateuchamber, F, and outlet-water chamber G.

'lhe valve D has lnaiu inlet-passages, it', and a main outlet-passage or eavitym', through it, which passages are brought, successively, by the tip or play of the valve, in line respectively with the xed inlet and outlet-ports, e e', ff', q g',^a11d h h', to pass water to and from opposite sides of the piston inv the measuring-chamber B.

The' inlet water-chamber 11 is supplied with water by a pipe, F, and has an opening, lo, inv it, establishin g communication with/the lower chamber or passage, F", arranged to extend beneath the measuring-cham-` ber, immediately below the huh-piston, while the outlet-chamber G has an opening, k', in it, establishing communication with an upper outlet-passage, Gr', made in a raised portion of the lid, B' of the measuringchamber, and arranged to run along either side of a space or chamber, H, in which the indicating or registering mechanism, operated by,` the pivot-pin a, may be placed. v

The front surface, against which thchva'lve D works, has also arranged in it, below the inlets c e', ports or passa-ges, Z7', which run or project into the ,sides ot' the recess in which the hub of the piston wol-lis, and are of vertical elongated form at their openings into said recess. y y

'lhelowersection C of the hub plays over these passages, and, by means of vertical passages, m m', opening through the bottom of the hub, alternately establishes communication, through an arched port orports, a n', in the baseof the measuring-chamber, between either one of such passages l l', and the inlet waterchamber 0r passage F2, `and exhaust-port o, thatis in i'rcc connection with' the hollow upper section C of the hub, being brought over or opposite either passage,

or l', when either passage, 'in or an', is in communication with the other of the passages Z'Z.

In this way, accordingly as the hub-section C/is vibrated in opposite directions, is a rush of inlet-water induced through either of the passages l1', to com- `plete the thro\ \y of the valve D, after the latter has been started by either end ot' an exhaust-port, p, in thcnpper section C of the hub acting, during the working of such hub-section, on a pin, q, arranged to project from the face of the valve.

The exhaust-port 1) also serves, in connection with ports 1)11, in the valve-chest, and the exhaust-passage j through thcvalve, to carry oli` the water used inthethrowofthe valve when the exhaust-porto ot' the 4hub is in snitabe connection with either passage, l or l', for such purpose.

As represented in the drawing, thcfralve l) has been tipped, or, rather, the completion of its throw effected, by water entering through the passage l',the main body of water previously used in the throw of the valveixr the reverse direction having been discharged through the passage l, and up through the y hub and ports and passages p p' p', and valve exhaustcavity or passage j, into the outlet-chamber G.

By the valvular portion or section 0 of the hub only having au intermittentmovement toward the t completion of` the lever-pistons stroke, through gear ot' the hub-sections C C', as hereinbefore described, the inlet-passages m m and exhaust-port o in the hubsection C' are caused to remain' a sufficient length `of time in communication witlneither passageV l Z' and port or ports an, to secure the full throw of the valve, and, by the controlling action of the latter over the main inlets c c 'and main outlets j f' of the measuring-chamber, to secure the complete stroke of the lever-pistou under all pressures of the incoming wat-er.

To perfect the action, herein described, of the main valve D, which is only started in its throw bypositive connection with, or action on it, of the lever-piston, and has its throw completed by a rush of inlet water, it is desirable or necessary to make some provision for getting rid of water that cannot escape through either of the passages, l or l', open to the exhaust, by reasonl of said valve, toward the completion ot' its throw, covering such passage.

passage j made to open through .the top as well. as through the sides ot' the valve, and said valve made to work on its periphery in contact vwith abutments 'a u', in such manner that, as the valve approaches the age j is exposed beyondv either abutment, n. or a', alternately, for escape to the exhaust, of remaining water used to effect the previous throw of thevalve.

'lhcstarting of the main valve by a positive motion derived from the piston, may,'il1 some cases, be dispensed with, and the whole throw ot' the same be effected by the operating liquid through the 'agency of a suitable secondary or additional valve operated bythe lc\'erpiston, the hub-section C', in the construction and arrangement of parts representedin the drawing, constituting one form of 'suoli secondary or c ontrollin gvalve to the maiirval-ve.

What is here claimed, and desired to be secured by Letters Patent, is-f y '1; rlhe combination, with a reciprocating lever-dia'- phragm or pistou, and inensuring-chamber in which it works, of a main valve to said chamber, and secondary or additional valve, operated by the leverpiston, and serving to effect the throw of the main as herein set forth. v

2. ihe hub of the lever-diaphragm, constructed ot' independent sections, C G', the one of which, C', is made to operate as a valve, aud-has an intermittent motion counnunicated to it by the other section, C, essentially as and-for the purpose herein set forth.

3. The valve D, provided with an exhaust-passage or opening in its periphery, in combination with the speci-fied.`

4. The arrangement, relatively to the valve D,Vot' the and o, the inlet-porter ports n. n, and exhaust-port or ports from the hub to the main outlet, essentially as described. y

' W. E. SN EDIKER. Witnesses:

FRED. Haynes,

HENRY lALMnn.

'lo this'end the valve l) has its exhaust-cavity 01" end oi' its throw in either direction', the exhaust-pass? valve by or through the operating liquid, essentially abut-ments u. u', substantially as and for the purposeports or passages l l', the hub-ports or passages m, fm',

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