US1116732A - Fluid-measuring pump. - Google Patents

Description

A. L. PRIMBAU.

FLUID MEASURING PUMP.

APPLIUATION FILED APR.4, 1913.

Patented Nov. 10, 1914.

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THE NORRIS PETERS 60.. PHOTO-LITHQ. WASHING I'DN, D. c.

- To all whom it may concern UNITED aims PATENT OFFICE.

ARTHUR L. PRIMEAU, OF FITCHBURG, MASSACHUSETTS. V

I FLUID-MEASURING PUMP.

Be it known that I, ART UR L; PRIMEAU,

a citizen of the United States, residing at F itchburg, in the county of Worcester and State of l\/Iassachusetts,-have invented certain new and useful Improvements in Fluidits primary object the provision of a double acting pump of this nature, which shall be of extremely simple construction, cheap to manufacture, and reliable in operation.

A further object of the invention resides in the provision of a double acting fluid measuring pump having avertically extending working or piston cylinder, intake and discharge headers or hollow members in communication therewith, and novelly constructed valves for closing the passageways leading into and from the interior of the working cylinder.

In the preferred-form of the invention,

the working cylinder and the hollow intake and discharge members are integrally connected. Part of the valve-controlled passageways extend horizontally and conduct the fluid being pumped from the interior of the hollow intake header or member into the In other words, the fluid flows past the intake valves before passing through the hori-' zontally extending passageways leading to thepump cylinder and it passes through the horizontally extending passageways leading from the pump cylinder prior to flowing past the outlet valves.

With these and other objects in view, as i will become more apparent as the descrip-. tion proceeds, the invention consists in certain novel features .of construction, combination, and arrangement of parts, as will be hereinafter described and claimed.

For a complete understanding of my'invention, reference is to be had to'the following description andaccompan-ying drawings,-in which, i

Specification of Letters Patent. I Patented NOV 10, 1914.. Application filed Apri14, 1913 Serial No. 758,910.

'F igure] '1 is atop plan view of my improved pump, and, Fig. 2 is agvertical sectional view therethrough, showing a por tion of the casing which contains the operating mechanism, which latter is not shown.

In the preferred embodiment of my invention, as illustrated'in the drawings, 5 designates a vertically extending piston or working cylinder, 6 the intake header or hollow member, cylindrical in shape, and 7 the discharge header or hollow member,

which is also cylindricalin shape. The

workingcylinder and thehollow intakeand discharge members are preferablycast incasting, and the intake and discharge headers or'members, are shown as being 'posi-' tionedrupon the exterior of the working cyl-' I 75 inder and on opposite sides thereof.

The last mentioned cylinder is closed at its upper "end bya removable wall 8, which is secured in position by means of suit? able fasteners 9. .Hollow sleeveglike pro- 1601310118 10 are integrally formed upon the exterior of the wall 8 to receive the sup,

porting rods 11, which are rigidly secured thereto. These rods extend upwardly through a casing, generally designated 12,

and "are secured therein by means of nuts'18. The .wall 8 is centrally apertured to permit the passage therethrough of a piston rod 1 1 to the lower end of which a piston 15' is secured-by means of nuts '16. A stufiing box 17 of the usual construction, surrounds the piston rod 14 upon the exterior of the cylinder. The means which I have provided for supporting the pump make it possible to so adjust the same as to bring the piston-rod lt in accurate aline- .ment with the operating means,'not shown.

The bottom wall 18 is formed integrally with'the cylinder and is provided with an ofl -set portionl9 which forms an inwardly I opening recess 20 to receive the nuts 316 when the piston is at ward movement. g

The intake" header or hollow member 6 is ofza much smaller diameter than the working cylinder 5, extends the full length thereof, and communicates therewith by means of the upper and lower horizontally-extending The flow" of fluid through the horizonthe limit of its down Y 7o vtegral-ly, thusprovid ng' a body or main tally-extending passageways 21iand .22 is controlled by the sleeve puppet valves 25 and 26, respectively. These valves are respectively called upper and lower inlet valves. Each of these valves is formed with a sleeve 27, equal to the internal diameter of the cylinder 6 into which it extends. These sleeve members are formed with openings or ports 28 through which the Both the plugs and valves are provided with tips or projections 33 for the purpose of securing the springs in position and limiting the outward movementof the valves.

The discharge header or hollow member 7 is of a somewhat larger diameter thanthe intake header 6, extends the full length of the working cylinder 5, and is provided intermediate its ends with a discharge neck 34, which is connected to a pipe 35that leads to a suitable discharge point. The fluid from the working cylinder 5 enters the dis charge header through the upper and lower horizontally extending outlet passageways 36 and 37, which lead from the upper and lower portions, respectively, of said working cylinder. Cylindrical tubular valve cages 38 and 39 are threaded into the'dis-, charge header or cylindrical member l7 and are disposed between the passageways 36 and 37. cages are of a restricted diameter adjacent their outer ends, viz., at the lower, end of the cage for the lower valve and the upper end of the cage for the upper valve. This cage construction provides seats for the valves 40 and 41, each of which is provided with an outwardly extending sleeve 42 having openings or ports 43 formed. therein. For the purpose of holding the valves upon their seats, I provide apertured disks 44 which are secured in the inner ends of the valve cages and which are provided with out wardly projecting stems 45, which termirate in spaced relationship to the projections formed upon the opposed faces of the valves. Expansive spiral springs 46. sur round the stems and by bearing against the valves serve to hold them normally upon their seats. The ends of the cylinder 7 are closed by plugs 47 and 48, similar in construction to the ones already described.

In operation, as the piston descends, the fluid is sucked into the piston or working cylinder 5 through the upper-intake passageway 2i and is forced from said sageway 37.

The passages through the valve cylinder through the lower outlet pas- During this movement of the'piston, the lower-inlet valve 26 that controls the fiowfrom the inlet header into the lower-horizontally-extending intake passageway and the upper outlet-valve 40 that controls the flow from the upper horizontally-extending outlet passageway into the discharge header remain seated. On the upstroke of the piston, fluid is drawn from the intake header, past the lower intake valve intothe lower horizontally-extending intake passageway, thence into the cylinder 5,

,and at the same time liquid is being forced from? said cylinder through the upper horizontally-extending discharge passageway 36, past the upper outlet valve, into the discharge heade Y From the foregoing description taken in connection with the accompanying drawings, it will be'seen that I have provided a fluid measuring pump of extremely simple construction, in which the inlet valves are located entirely within the inlet headers and the outlet valves are located in the discharge headers and said valves are therefore protected from injury. If desired, the plugs which close the ends of the cylinders 6 and 7 may be soldered or otherwise rigidly secured in position so that it will be impossible for anyone to tamper with the valves. It is to be noted that a very limited movement of the valves is sufficient to bring the ports formed in the sleeves thereof into such position as to permit the fluid to flow. intoor from the main cylinder 5 and this is an important feature of my invention. The projections formed on the exterior surfaces of the valves are provided with slots to receive a tool whereby the valve may be ground upon their seats in order to insure a perfect fit.

While in the body of the specification and inthe claims thereof a pump is described as having a vertically-extending pump cylinder and horizontally-extending passage ways, still it is to be understood that any pump, which can be positioned so that it can satisfy the combination of elements definedin the claim, will be within the spirit and scope of the invention. i

It is to. be understood that while I have shown and described the preferred embodiment of my invention, I do not wish to be limited to this exact construction, combination, and arrangement of'parts, but may make such changes as will fall within the spirit and scope of theinvention.

Having thus described my invention, what I claim is 2-- 1. A pump having a vertically-extending working cylinder, :1 piston therein, a hollow intake member, a hollow discharge member, upper and lower intake valves in said intake member and upper and lower outlet valves in said discharge member, said pump being provided with upper and lower horizontallyextending passageways leading from the interior of said hollow intake members to said working cylinder, and upper and lower horizontallyextending passageways leading from the interior of said working cylinder to the interior of said hollow discharge member.

2. A pump having in combination with a vertically movable piston of a cast metal body comprising a hollow intake member of cylindrical formation, a piston cylinder and a hollow discharge member of cylindrical formation, upper and lower intake valves located within the intake member, and upper and lower outlet valves located within the discharge member, said cast body being provided with four horizOntally-extending passageways, oneleading from the interior portion of the intake member to the lower interior portion of the piston cylinder, another fromthe interior portion of the intake member to the upper interior portion of the pump cylinder, another from the lower interior portion of the pump cylinder to the interior of the discharge member, and another from the upper interior portion of the pump cylinder to the interior of the discharge member, the valves being constructed and arranged so that as the piston is raised fluid flows into the piston cylinder, but only from the intake member past the lower intake valve, thence through the corresponding horizontally-extending passageway, andfiuid is discharged from said cylinder into the discharge member, but only through the upper horizontally-extending discharge pas- Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G." i

sageway past the corresponding outlet valve, the valves also being constructed and arranged so that as the piston is lowered fluid flows into the piston cylinder, but only from the intake member past the upper intake valve, thence through the corresponding horizontally-extending passageway, and fluid is discharged from said cylinder into the discharge member, but only through the lower horizontally-extending discharge passageway past the correspondingoutlet valve.

3. A pump comprising ascasing which is provided with a passageway, a tubular cage located within said 'passageand secured in place in said casing in a manner to prevent leakage between said casing and said cage, past the latter, a valve slidably mounted in said cage for controllingthe flow through' the fluid in said passageway when the pump is being operated. a

In testimony whereof I aflix my slgnature in presence of tWO'WltIlGSSGS.

ARTHUR L; PRIMEAU, Witnesses I SIDNEY E BELL, RUDOLPH SCHNEIDER.

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