US97097A - Improvement in fluid-meters - Google Patents

Description

who fluid may be admitted to either and of either 73. MEASURING AND TESTING. W1

zen/r 77,

97,09'7-HENRY B. LEACH, Boston, Mass.- Fluid-Meter.-November .23, 1869.

Glainu-l. The arrangement, in fluid-meters, of two measnrinlgl-cylindelrls, placgd elllld to eidawitg their axes int osame he, an 0210 provi e wit :p piston, and suitable water-passages c0minnnicat-/ 1.7 L 0,9760 ing with a valve-chamber common to both, so that cylinder, and move either piston, while the other is stationary, whether said. cylinders be cast in one 4 k \ieee or separately, substantially as described. 0

.3. In combination with two cylinders and their istons, constructed and arranged as set forth, the

rangemcnt of the valve-rods G and G the brackets, arms F and F, and the arms (3- and G substanly as described.

3. In combination with two cylinders and their pistons, constructed and arronged as set forth, the arrangementof the water-passages and ports 9, h, i, j, 1:, and l, snostantially as described. 1

4. The pistons D and D, he motions contolledso as to insure th! 4g i1 ii the stroke -'ench piston before it commences its ration-stroke,

flocking one valve by the mu io of the other vulv,

tmtiallges describe" PLPETEBS, PNDTO-LIYHDGRAPNER, WASNINGTON. D C.

we own.

Toolkit-710m it may concern p Be lt'known that 1, HnxnY B. LnAcH. of Boston, in the county of Snli'olk, and State of Massachusetts,

ln'wevinvented certain new and useful Improvements 'HENRIY' BgLEAOH, or Boston QnAssAoHUfsE-Trs.

fLcttcrs'Batent No. il7,097, dated Nocmnber 23, 1869. I

IMPROVEMENT IN rnum-ivm'rnns.

The Schedule rcferredto theseI-etters Patent and. makinglpart of thorium in Fluid-Meters; and I (lo-hereby declare the following to be a full, clear, and exact description of the same, taken in connection with the accompanying drawiugs,making a part of this specification, and the letters of reference marked thereon, in which- D valve-casing removed;

Figure 2 is a vertical; longitudinal section on line 2 2, on fig. .1; and 4' I Figure3 is a verticallongitudinal section on line Fi ure 1 is a plan of my improved-meter, with the my invention relates, inthe firstplace, to the con slruction and arrangement of the cylinders, pistons,

' 'and valves, and. the manner of working the valves,

I and passages communicating with one cylinder may be moved by the piston working in theopposite-cylinder,'in the-same direction that the piston itself moves, without the use of levers.

'In order. to accomplish this result, the passages leading item the valve-cha-mher, to either end of one of the chambers, have -to cross eaclt'othcr, as shown in tig. 3, and in order to simplify the cores, and make it compaiatively easy to cast the cylinders and passages-,tbe ports are arranged as shown in fig. 1.

It also consists-in the use of an arm, attached to each piston, in combination with a valve-rod, fitted to slide in a bearing provided for the purpose, between the water-passages, and having an arm projecting up through a slot made in the valve-seat, and fitting into a recess made in 'the under side of the valve, said valve hcingmade so as to cover the slot in which said am works at all times.

' The connection between the arm attachedto the piston. and the valve rod is made by a fork on the end -of said am; partially surrounding said rod, and movingbctweent two shoulders or collars on said rod, so that the piston may tiavelthrough the greater part of its movement before it begins to move the valve.-

' 'ltalso consists 'in making thctconnection between the piston-and the valve-rod inside- 0f a bonnet or made. I

casing, attached to the cylinder-head, and communi eating withthe cylinder, by which means the wearingpart ofthe stroke, no register of the leak or waste will takeplace; or, ifthe register be operated bythe first part, or middle, of said stroke, .then a full stroke will be registered, when onlya partial stroke has been 'lo obviate this diflicult-y, and compel thepiston to complete its stroke before commencing its return stroke, even when drops only are passing through the machine, and thereby make-a perfect register, is the object of the second part of my inventiony-aml It consists in the use of a double-ended pawl or deteut-lever, hung upon a pivotabove the valves, in combiuationwith suitable lugs-or teeth, having inclined sides :on the upper side of the valve, so arranged that when one valve is at the extrenle'ot' its. niotioin'and the other commences to move, tb'e first valve shall be efl'ect'ually locked in position by said movement of the other valve, sothat it cannot move until the second valve has .completeddts movement, and, as the valves are m'ovedhy the pistons, it thllows that each-piston must complete its full stroke hetbre commencing its returnstrokc, as will be more-fully described. t

In the drawings- 1 1 t A and vB represent two measuring-clnimbers,constructed,.inthe case represented in the-drawings, bymaking one long cylinder, and dividing in-transversely, in the middle by tli'e'solid partition 0, so as to form two distinct chambers, placed end to end.

The partition 0 may be cast in one piece, with the cylinder, or the .two cylinders may be cast separately,

. and placed end to end, in a perfectly obvious manner,

without-affecting the principle of operation.

D and D are the pistons, made of, such length as" to have-suhicient hearing-surface :to guide them in their movements withoutother'guides.,

The pistons are made hollow, as shown in fig. 2, to lighten them, and are provided with elastic cushions a a, fitted into recesses formed 'in' their ends for the purpose, said cushions being held in placeby the screw 1), and serve the purpose of elastic stops, 'to' check the movement of the. piston at the-end of its stroke, by coming in contact with-the rings 0' 0, projecting into the cylinder, from "the center of the cylinder-heads E E, and thepartition 0.

By the use ot'.the screws'b b, the elastic cushions l l l 73. MEASURING AND TESTING.

w u may no suguuy uu usLL-u, uy .puwuig aper, or other suitable material, behind them, to vary the movemcntsot' the pistons, as will .be readily understood by any good mechanic.

1" and F'are arms or brackets, att ched to the' outer come in contact with one of the shoulders 11 and d or.

c and c.

1he.valve-rods G and Gare. fitted to slide in bearin'gs tbrmed in the solidnietal between the water-passages, and are provided with armsG and G on their inner ends, which project upward, through a slot in the valve-scat, and into a recess formed for the-purpose in the under side of the slide-valve.

The valve-rod that is connected atone end to the piston l) is connected at its other end to the valve that covers the passage leading to the cylinder in which the piston 1) works, and the rod that is connected atone end to the piston I) is connected at its other end to the valve that covers the passz'lges lead: ing to the cylinder in which the piston Dmovcs, so that. the movement of the piston!) moves the valve that connnunicates with the chamber B, and mice cars-d.

H H are t-he-slideevalves, made of such a form as to cover the necessary ports or passages, and the slot through which the valve-rod communicates with the valve, so that the valves may beworkcd directlyby the movement of the piston,'withont the use of stuffing-boxes in any form.

r and h are the supply-passages, communicating with the chamber 5;, and c ess each other, as shownin tig. 3, the passage It being shown indotted lines.

1'- is the discharge-port, or passage, covered by the same valve, and .connnunicating with the same chamber, through the valve H, and is'shown in dotted lines.

j and k are the supply-passages, and], the dischargepassagc communicating with the'chamberB,'a-lso shown in dotted lines in'fig. I.

Toe .valves H and Hare guided in their movements by the guide-bar an, fitting into a groove formed in the upper surface of the valves, saidguide-bar being supported on adjustable standards a n, at either end of the same.

I is a double pawl, or detent-levcr, pivoted to the guide-bar an, so as to be free to move as it is acted upon by either valve.

The pawl, ordetent-levcr I is provided with two inclined landing-laces at either end, to work in conjunction with the raised lugs, or lips 0, on the upper side of the valves, also having two inclined holding-faces aml a Hat surliice at the top, between the two inclines, as shown in fig. 3.

L is a case to receive the gearing of the registeringapparatus, notshown in 'the drawings,

The operation of my improved meter is as follows:

Supposing each piston to be at the outer endot its ()flllldt'l',,tllltl the valve H to be in the position in which it is shown in fig, 3, i. c., with the port j wide open, the pressure of the water passing through the passage j, and acting upon the piston D, causes it. to move toward the other end of the cylinder, until the aim F comes in contact with the shoulder d on the valve-rod, G, and moves the valve l-l',covei'ing the passages to the cylinder A, and, it a full stream is being drawn, the piston 1) \vill'complcte its stroke, and give the valve 11' its full movcnn-nt, the water on the other side of the piston D being discharged through the passage It, the valve. H, and the passage 1.

When the piston D has completed its stroke, and

the elastic cushion a has come in contact with the.

ring-vi and the valve H is moved so as to uncover the will cause the piston D' to move toward the outer-end;

ot the cylinder -B,-a nd, by its. movement,"n ove the valve H, until the port It is uncovereihand the pressnrc'ot' the head of water, bcingtransmittcd through the passage'h to the inner end ot'the piston D,'causes it to move toward the outer end of the cylinder A, which opemtion will be rcpeated-iudcfi nitely, the locking-device beingimiperative, or not effective, because there is no occasion for its use as long as a full or nearly full stream is being drawn from the tiinoet.

It, by accident ornegligence, a leak occurs, or the faucet is left partially opeu,-so that a very small stream is running through the lini'cet, theopcration' will be somewhat; varicd, ti'om the fact,.tha t without the use of the locking-device, the piston would only move so far in either direction as to open the valve far enough to allow ot' the passage of the very-small quantityjof water being passed througli the machine, and then it would stop, and. theothcr piston begin tomove.

In case ot'a leak or a small stream being drawn, the operation will be as follows: The parts being in the position at first supposed, the piston D will he moved to the position in which'it is shown in iig. 3, and the valve l1 into the posit-hm shown in the same'figure, :when it is. open sutiicicntly to allow all the water to pass that is being passed through the faucet; when the piston 1), having the ralve and rod to move, while the piston Dlhas no load upon it,'the piston D stops, and the piston 1) moves until the forked end ot'the' arm F comes in co'ntznt with the shoulder (1,011 the rod G, and the piston 1-) is in the position shown in iig. 3,

when, as the valve H is firmly locked by one end-of the pawl-lever I being depressed in such a position as tobear against-the outer inclined surface on the lug o,.--'and is held firn'dyin' that position by the other end of said detent-lever resting on the top of the lug 0, on the valve H, the piston I) must remain stationary until the piston Dhas completed its stroke, and inbred the valve H from under the raised eiidof the pawl, or detcnt-lever I, when the.pistou D will commence \to move again, and move the valve H until the port kjs uncovered enough to allow the small quantity of water that is being drawn to pass through, when the piston D \villbegin tomove toward the outer end of the cylinder, which mm'emcnt will continue until the arm E comes in contact with the shoulder e, on the valve-rod G, when, nsthe valve H is tirmly locked by the detent, or pawl-lever I, it comesto a standstill, and remains "thatposition until the piston'D has completed it stroke, and moved thevalve H from under the raised end ofthe dctentlever I, when the piston 1) moves again, untilthe valve H commences to uncover the port Ii, when the piston D, being free to move, and-having 'no load, is moved until the forked end-of the arm 1 comes in contact with the shoulder a, on the rod G.

This operation will be repeated as long as the leak or waste continues, that is, one piston will move through a portion of the stroke, and then stand still until the other piston has moved through a portion of it's stroke, when it will rennlin suitionary until the first piston has moved through another portion of its stroke, when it stops for the second one to complete its stroke, and so on 'to the eml, both pistons finally moving the whole length of the stroke bcfoi commencing their return-stroke, and thercbyinsnring a perfect register.

i l l The registering-apparatus'is not shown, as thereis nothing new in its construction, but is applied in the ease L, with a spindle passing, through the hole 1), in the valve-easing, and is worked by the'movement of the valveiu any suitable manner.

I do not'clailn, broadly, the use of two measuring chambers in one cylinder, the pistons of which work alternately, and each piston moving the valve that covers theports, or passages communicating with the opposite chamber, thr that is covered by the patent No. 87,104, gianted to-me February 23, 1869; but

What I claim as'new, and desire to secure by Letters Patent, is--- 1. The arrangement, in fluid-meters, of two measuring cylinders, placed end to end, with their axes inthe same line, and each provided with a piston, and suitable water-passages commnnicatingr with a valveehamber eonnnon to both, so that the fluid may be admitted to either-end of eithercyliinler,and more either piston, while the other is stationary, whether said cylmar inders be cast in one piece or separately, substantiallyas described.

2. In combination with two cylinders and theirpistons, constructed 'and arranged as setforth, the arrangement of the valve-rods G and G, the brackets,

or arms F and 1*", and the arms G and. G, substantially as described. v 3. In combination with two cylinders and their pistons, constructed and arranged as setforth, the arrangement of the water-passages and ports g, 7:, 5,

locking one valve by the motion of the other valve,

substantially as described.

Executed at Boston, this 3d day of June, 1869. Witnesses: HENRY B. LEAOH.

Tues.- Homms, N. G. LOMBARD.

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