US421489A

US421489A - Mary e

Info

Publication number: US421489A
Authority: US
Publication date: 1890-02-18
Anticipated expiration: 1907-02-18

Description

(No Model.)

6 Sheets sheet 1.

H. 'P. GASKILL, Deod M-. E. GASKILL,EXe0ut1iX. ROTARY DOUBLE PISTON LIQUID METER.

Patentedfeb. 18, 1890.

N. PETERS. Phdvliihugnnhee. Wnhinglon, D, C

2 t e e h S .S t e e h S 6 m 0 .m Dr. m LR E KI Sm AG M H (No Mode-Ly ROTARY DOUBLE PISTON LIQUID METER.

No. 421.489. Patentedfeb, 18,1890,

INVENT R= Q/KJ WITNESSES- (No Model.) 6 Sheets-Sheet 3.

H. F. GASKILLDe c'd.

M. E. GAsKiLL, Executrix. ROTARY DOUBLE PISTQN LIQUID METER.

No. 421,489. Patented Feb. 18, 1890,

(No Model.) 6 Sheets-Sheet 4.

H. P. GASKILL, Decdt M. E. GASKILL, Exeoutn'x. ROTARY DOUBLE PISTON LIQUID METER.

No. 421,489. Patented Feb. 18, 1890.

"INvENTum (No Model.) 6 Sheets-Sheet 5.

HP. GASKILL, Deod.

M. E. .GASKILL, Executrix. ROTARY DOUBLE PISTON LIQUID METER.

Patentag d Feb. 18,1890.

WITNEZSEEEF |NVENTDR= 8 e h S 6 N 0 e L L l K S A G P H .q d 0 M 0 m M. E. GASKILL, Executrix. ROTARY DOUBLE PISTON LIQUID METER.

Patented Feb.-18, 1890.

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W E. 2 WW WITNEESE5= N. PETERS, Ehalo-Uthogmpher, Waahington, n. r;

UNITED STATES PATENT OFFICE.

HARVEY F. GASKILL, OF LOCKPORT, NE\V YORK;.1\1ARY E. GASKILL EXECUTRIX OF SAID GASKILL, DECEASED.

ROTARY DOUBLE-PISTON LIQUID-METER.

SPECIFICATION forming part of Letters Patent No. 421,489, dated February 18, 1890. Application filed SeptemberB, 1888. Serial No.'284,456- (No model.)

tional elevation 011 lineAB of Fig. 3 at right angles to Fig. 1. V Fig. 3 is a horizontal section on line E F of Fig. 2, but with cover removed. Fig. 4 is a plan of'the base-piece. Fig. 5 is a plan of the lower cylinder. Fig. 6 is a central sectional elevation of the lower cylinder. Fig. 7 is a plan of the plate which separates thetwo cylinders. Fig. 8 is a side view of said plate. Fig. 9 is a plan of the rotating piston. Fig. 10 is a central sectional elevation of the piston. Fig. 11 is a plan of the upper cylinder. Fig. 12 is a central sectional elevation of the upper cylinder.

The meter shown in the drawings consists, in its main parts, of a base, two cylinders, one above the other, mounted on the base and having Water-passages in their peripheral sides, a rotating piston in each cylinder, a separatingplate between the cylinders, provided with cut-01f flanges projecting into the cylinders to separate the inlet from the outlet, a cover-plate for the upper cylinder, a surrounding casing, and gearing and counting or registering mechanism.

The base-casting A (shown in plan in Fig. 4 and in section in Figs. 1 and 2) is provided with nozzles 00, which may be threaded, as shown, for making connections. One of these 00 contains the inlet-opening andthe other a the outlet. The body of the casting is hollow, as shown, and the inlet, which occupies the center and one side of the interior chamber, is divided by a web or membrane B fromthe outlet.

O is the lower cylinder. It is circular in form With a circular interior chamber D. Water enters this chamber at c and leaves it through the passage {1 and opening 70, Fig. 5. The upper cylinder F is of similar construction, with a chamber G, an inlet d, and outlet h 7e, Fig. 11.

The pistons H are preferably of the form shown in Figs. 9 and 10, with openings at, and may be made of rubber or other suitable material. They are somewhat smaller in diameter than the chambers D and G, and are arranged in the chambers so as to be in contact with their walls at one side.

c is a shaft stepped at its lower end in th basecasting and extending up centrally through the chamber D and G. Upon that part of shaft 0 which is within the chambers a hollow shaft 1) iseccentrically secured, and upon this shaft 19 the pistons H are mounted. As a result of this arrangement the pistons, when in place, are concentric'with shaft b,

but eccentric to c and to the chambers, and

are in contact with the walls of the chambers at one side, and as the pistons sweep around in the chambers they will revolve upon shaft 1) and roll upon the walls of the chambers like wheels, thereby greatly reducing friction. The inlet and outletsides of the chambers are divided by T-shaped pieces 6 and f, one in each chamber, which extend from top to bottom oftheir respective chambers and have their heads against their respective pistons and their webs arranged to slide, like sliding doors, into spaces a and b in the dividingwalls which separate the inletpassages c and d from the outlet-passages g and it. These pieces 6 and f are both connected to a plate (Z at opposite sides and on opposite sur.

faces thereof, and the plate is arranged between the two cylinders, so as to separate the chambers D and G from each other. As the pistons I-I travel around, the pieces a and f move in and out in unison and the plate at slides with them. I

'L is a covering-plate on the top of cylinder F.

1 are bolts or screws which fasten the two cylinders to the base A.

p is a pinion onthe upper end of shaft 0.

s is a gear whose arbor 'is supported in a bridge n.

q is a gear meshing with pinion 1), and r is a pinion on the same arbor gear qand meshing with gear 3. The object of this arrangement is to reduce the speed between shaft 0 and the counter mechanism.

m is the casing of the meter, secured to base A and inclosing the cylinders, &c.

u is a shaft mounted ina bearing in casing m and passing through a stuffing-box to prevent leakage.

At t shaft u is coupled to the arbor of gear 8. WVhen it is desired toopen the meter, the coupling t parts, and the casing may be lifted without disturbing the gearing.

At w are lugs on casing m, for the support and attachment of the counting mechanism which is coupled to shaft u. I have not thought it necessary to show this mechanism, as its construction forms no part of my present invention.

In operation the Water or other liquid to be measured enters at w, and, following the course indicated by the arrows, passes up through openings Z Z, around the cylinders, and up through the central opening, through shaft 1), and through the pistons at a, and fills casing m. Thence it passes through d into chamber G, and, turning the piston therein, passes out at it, down through It, and out at :10. It also passes through 0 into chamber D, and, turning the piston therein, passes out through 9 and down through 70' and out at 00. Each piston is carried past its dead-point by the other piston, which at that moment will be at mid-stroke.

What I claim is- 1. The combination, substantially as set forth, of the two cylinders (J and F, the pistons moving therein, the sliding separatingplate d, and abutment-pieces e and f.

2. A liquid-meter having two circular measuring-chambers having a common axis, cylindrical pistons revolving therein, an abutment, for each piston, and a sliding plate separating the pistons and moving the abutments,

the said pistons being always at opposite points of their strokes, substantially as set forth.

3. In combination with the casing provided with suitable inlets and outlets, two superimposed cylinders O and F, axially in line with each other, having openings 0 d in their walls communicating with the interior of the casing, and with openings 70 and k, commu rotatable pistons, and valves.

5. In combination with a suitable casing,

stationary superimposed hollow-walled cylinders provided with inlet and discharge openings, rotating pistons mounted eccentrically within the cylinders and arranged diametrically opposite each other, and movable abutments againstwhich the pistons act.

6. In combination. with a suitable casing, superimposed hollow-walled cylindersprovided with inlet and discharge openings, rotating pistons mounted eccentrically within the cylinders diametrically opposite each other, and provided with openings, a hollow shaft by which said pistons are carried, and a plate d, cut away at its middle and provided with abutments. v

HARVEY F. GASKILL.

'Witnesses:

F. H. SEYMOUR, W. T. SEARS.