US693032A - Liquid-meter. - Google Patents

Description

No. 693,032. Patented Feb. ll, I902.

W. G. KENT.

LIQUID METER.

(Application filed Aug. 5, 1901.) (No Model.) 2 Sheeis$haet l.

WITNESS: I INVEA/TUI? I ATTORI VE YS.

No. 693,032. Patented Feb. ll, I902.

W. G. KENT.

LIQUID METER.

(Application filed Aug. 5, 1901.)

2 Sheets$heet 2.

.(No ModeI.)

FIQX).

WITNESSES" J A TTORNE Y3 UNITED STATES PATENT OFFICE.

\VAL'IER GEORGE KENT, OF LONDON, ENGLAND.

LIQUID-METER.

SPECIFICATION forming part of Letters Patent No. 693,032, dated February 11, 1902.

Application filed August 5, 1901. Serial No. 70,953- (No model.)

To all whom it may concern.-

- Beit known that I, WALTER GEORGE KENT, a subject of the King of Great Britain and Ireland, residing at London, England, have invented an Improvement in Liquid-Meters, (for which I have vmade application for Letters Patent in Great Britain under N0. 5,99% bearing date March 21, 1901,) of which the following is a specification. 1

This invention relates to apparatus for measuring and registering the quantity of liquid passing therethrough, and has for its object the provision'of an appliance which shall be more accurate than is usual in its measurement at verydiverse velocities, which shall work silently without shock, which shall remain water-tight under wear by reason of a self-surfacing distributing-valve, and which shall permit the removal of the principal working parts and the port-faces by the breaking of a single cover-joint, thus providing easy access for repair or replacement of worn parts without disturbance of connections to the pipes of exit and entry.

In order that my invention may be the better understood, I proceed to describe it with reference to the drawings hereto annexed and to the letters marked thereon.

Figure 1 is a transverse vertical section of my meter. Fig. 2 is a plan of the same with top cover and all working parts removed. Fig. 3 is a vertical section at right angles to that of Fig. 1 through one of the cylinder: linings on the line 00 m. Fig. 4 is a vertical section at right angles to that of Fig. 1 through the line y 3 showing internal ports and counting-gear. Fig. 5 is a longitudinal section through the annular valve, and Fig. 6 is a transverse section through same.

I provide in my appliance four cylinders A A, arranged in two pairs, which are conveniently fitted with internal liners a a, leaving the extreme upper and lower ends of the cylinders in communication, through chambers B B of large capacity, with short ports I) 1), two, I) 1), Figs. 1 and 2, issuing on a lower port-face c','and the other two, I) 12, Figs. 1 and 4, on an upper port-face 0, formed in an upper cover D. This upper cover D contains the upper cylinders, an upper portface for the said ports of such cylinders, and

the counting mechanism E, the whole of which may be removed by breaking one joint at d. The port-faces c o are connected by a portblock F, through the center of which runs the crank-shaft- G, and in the body of which the ports b b b b are brought to a vertical valve-face in arrow-head or crescent ports f f, arranged symmetrically about the center of the port-block. Thesaid port-block is held in place only by the upper coverD and a dowel-pin p. In the cylinders are fitted pistons H, connected in pairs by connectingwebs it, having in each of their centers a horizontal slot K, forming with the crank-pins g and, revolving sleeveg thereon what are termed dog-cranks. The crank-pins g are at right angles to one another, so that one" pair of pistons are at half-stroke'with full flow while the others are at dead-center.

The above dog-crank arrangement has advantages as a connection between recipro eating pistons and a crank in a piston-meter, inasmuch as it conveniently admits of a recess K being provided in the center of each transverse slot K, by which the pistons are allowed a certain play or waste motion in the said slot at the end of their stroke to compensate for the partial cushioning of the liquid on its discharge at the end of the stroke, caused by the gradual closing of the exit-ports, and this enables this meter to work without straining the pistons andcranks and without shock. T l

Upon the vertical port-face of the portblocks F works an annular valve L, (seen in longitudinal section inFig. 5 and in transverse section in Fig.'6,) which has an annular recess or pocket Z concentric with the valve on that face toward the ports. The valve receives a rotary translating movement from an eccentric-tumbler M, keyed to the crank-shaft G, which latter passes through the annular valve and port-face. By reason of the symmetrical and concentric annular form of the valve L and its recess Z its control of the ports over which it makes its rotary translating movement is not interfered with by any angular or rotary movement of the annular valve L relatively to its internal eccentric tumbler M. The valve, therefore, is left free to rotate or angular-1y move about the periphery of the eccentric-tumbler M as it may think fit, and it is therefore constantly altering the position of its wearing-faceto that of the portbloek F on which it works, and thus perfect regularity of wear and water-tightness are insured.

In Figs. 4 and 5 the arrow-head or crescent shaped ports f on the face of the port-block F are clearly seen, one communicating with the outer ends of each of the cylinders A, respectively. There is also a central annular portf',which is alwaysin communication with the annular recess or pocket Z of the valve L. The driving-liquid pressure enters by the external pipe N and passes through a strainer '11 to the central chambers P P, in which the cranks rotate. The driving liquid is thus situated on top of the annular valve L, and such port f as is exposed beyond the rim of the annular valve (see Fig. 5) receives the liquid supply and conducts same to its respective cylinder. The other portf at the opposite part of the port-face is in communication by the annular pocket Z of the valve L with the central annular port f, and the liquid from that cylinder is discharging to the exit-pipe Q. The ports fare uncovered successively and are successively in communication with the central discharge-port f. The meter thus constantly operates under a liquid-pressure supply and discharges the same through the cylinders to the exit-pipe Q. The number of rotations of the crank-shaft G are recorded by a worm and worm-Wheel R, transmitted by the vertical shaft and crank-finger to any suitable counting and recording train E.

, It will be observed as an essential result of my mode of construction that when the upper cover D is removed by the breaking of the single joint d not only are all the working parts exposed to view, but the port-block F, held only by a dowel-pin p in thelower port-face, the valve L, the crank-shaft G, and the pistons l-I may be all lifted out for examination, repair, or renewal, leaving the lower port-face e and short ports I) therein open to view for cleansing, if necessary, as well as the port-face c and ports I) in the upper cover removed, and this may be done without disturbance to the lower casting or to the entry and exit pipes connected thereto.

Having'now described my invention, what I claim, and desire to protect by Letters Patout, is

l. A liquid-meter consisting of, in combination, reciprocating pistons in cylinders; a single joint dividing cylinders at a port-face; a central removable port-block uniting cylinder-ports'to a single valve port-face; a Valve fitted to operate over said valve-face; a pipe entry and exit to port-block situated in lower part of casting; and valve and piston driving connections passing through and connected with said port-block, adapted so as to allow all working parts and port-block to be removed, upon disconnecting the parts at the said single divlding-joint.

.2. In a liquid-meter, in combination, four reciprocating pistons paired in couples; four cylinders in pairs, each pair adapted to receive one ofthe said paired pistons,placed parallel to one another; a two-throw crank-shaft, at right-angles,connectingsueh paired pistons, having a bearing in a removable and central port-block, a valve thereon; and a single dividing-joint between upper'and lower parts of cylinder-castings, situated so as to enable all working parts and said port-block and valve to be removed upon disconnecting the parts at said single joint.

3. In a liquid-meter, in combination, aremovable port-block adapted to unite the ports of multiple cylinders with one port-face; a crank-shaft passing centrally through said port-block and having a bearing therein; an eccentric keyed upon said central shaft; an annular valve, having an annular pocket or recess therein toward port-face, and fitted to move freely about the periphery of the said eccentric; a dowel-pin adjustment to said port-block on port-face; and a jointed cover holding said port-block and shaf t-bearin g in place when bolted up.

In witness whereof I have hereunto set my hand in presence of two witnesses.

WALTER GEORGE KENT.

Witnesses:

RICHARD A. HOFFMANN, CHARLES CARTER.

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