US875370A - Oil-pump. - Google Patents

Description

No., 875,370. I PATENTEDVDEGTSI, 1907. W. A. QDBLL. OIL-PUMP.

APPLICATION FILED JUNE I 1906.

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Witnesses. I Inventor UNITED STATES PATENT @FFXQE.

MZWILLARD ARANZO ODELL, OF WINNIPEG, MANITOBA, CANADA, ASSIGNOR or ONE-FOURTH QTO GEORGE nDwARn NORRIS AND ONE-FOURTH o JOHN ROBERT NORRIS, or WINNrrEe,

To all'whom may concern: i :Be it known that I, WILLARD ARANZO ODELL, of the city of Winnipeg,.in the Prov:

ince of Manitoba, Canada, machinist, have invented certain new and useful Im rovements in Oil-Pumps, of Which the fol owing is the specification.

My invention relates to oil pumps, more especially those used in feeding automaticallythe oil to the cylinders of engines or such like, and it consists essentially of an outer casing or oil receptacle, a centrally disposed and secured upright block section, a

passage-way extending lon itudinally in the o'werportion of -said bloc r, a cylinder extending per )endicular from said passage-way, a cutoff va ve and valve seat, bearings on saidca'sing, a crank shaft journaled in said ati'ng the cu tofl' valve, an outlet check valve.

bearings, a connecting rod secured to the crank and actuating a plunger in the aforesaid cylinder, a cam extending fro1n tl 1e shaft, nieans actuated by said cam for operis an end sectional view of the pum the section being taken in the plane X Fig. 2 Fig. 4 is a vertical sectional view of the block, through the center of the passage-way.

In the drawings like letters of reference indicate corresponding parts in each figure.

A is an outer casing or oil receptacle, closed at the top with the cover B.

C is a centrally disposed block sectioi1fsugported on the inner face of the bottom 0 casing, being a portion thereof or inserted and secured thereto.

D is a bifurcated-upright portionsecured to the block and fornnng a guideway for the ing ER.

cutofi valve stem hereinafter referred to.

E 'is a. passage-way extending longitudinally the full length of the'block O to an opening E in the casing.

E is an outlet valve screwed inthe open-.

OIL-BUMP.

Specification of Letters Patent.

Application filed June 1. 1906- Serial No. 319.774:-

Patented Dec. 31,1907;

E is an inlet through the portion D, from the passage-way, to the oil receptacle.

I is a working cylinder extending from be low vertically upward and through the passage-way E, and of a diameter equal to or greater than said passage-way. P

I? is a stuffing box screwed into the block section C, and at the upper extremity of the cylinder.

F F are opposing bearings secured to the upper portion of the ends of the casing.

I is a crank shaft supported. in the bearings having a carnG extending therefrom.

I I is a connecting rod secured to the crank shaft, to the bottom portion of which is secured by means of a pivot a plunger H The upper end of the connecting rod is fitted with brass steps and these are in turn fitted to the crank pin K. The plunger H extends downwardly through the stufiing box into the cylinder I and is slidable therein.

L' is a conical cutoff valve normally supported in a valve seat formed inthe passageway E L is a valve stem extending upwardly from the valve and passing through the guideway formed by the forked ends L and M is an encircling actuating spring. The end of the valve stern L 'is hooked at N and is designed to engage with the cam G when in active operation.

O is an opening through the block section C vertically below the valve seat and acting as a dash pot for the valve sternv P is a drive wheel-with a double set of ratchet teeth one set P 'extending around the peripher and' the other P around the outer edge 0 the inner face.

R is a spring pawl secured to the end of the casing A and engaging the ratchet teeth P on the inner face of the wheel.

A lever S is revolubly secured on the crank shaft and adjoins the outer face of the wheel P. Inwardly offset from the face of the lever is a bearing for a spring pawl S which engages the ratchet gearing on the periphery of the wheels i In operation the oil purnp is secured in proximlty to the cylinder or such like and the lever S is connected by a linkmotion to .thecrosshead of the engine.

The oil tank or receptacleA is filled with oil to be fed.

From the check valve E a pi e leads toi the cylinder. The motion of t e driving At the beginning of the upstroke of the plunger the check valve is closed and the cutoff valve 0 en, thus allowing a direct passage to the oil 0 amber.

Throughout the upstroke, oil is drawn into the cylinder and when the plunger isin its up er position or thereabouts the cutoff va ve is closed automatically and the down stroke of the plunger forces the oil out through the; heck valve to the cylinder.

' The operation of the cutoff valve is directly controlled by the extending cam G which, in the rotation of the shaft engages the hook at the upper extremity of the valve stem carrying it upwardly till the cam is forced, due to the rotation of the shaft to clear the hook and the valve stem being set free is forced downwardly by the, actuating spring M, closing the cutoff valve. It is tobe noted that this is a particularly-active cutofl.

The various position of the plunger and the cutoff valve are predetermined throughout the stroke by the relative position of the crank pin and the cam.

What I claim as my invention is:

1. In a device of the class described, the combination with an inclosed casing forming an oil receptacle, of a lower solid portion centrally disposed therein and having a passageway extending longitudinally through the said portion and provided with an inlet opening into the passage-wa from the receptacle,

an outlet valve secure in the passage-way,

a vertical working cylinder formed.in the naled in the casin a connecting rod extending from the cran pin to the plunger, a cam protruding from the shaft, a spring ressed inlet cuto valve extending into and t ough the assage-way, a hooked shank or stem extending upwardly from the inlet valve and designed to engage the cam, and means for revolving said shaft, as and for the purpose specified.

2. In a device of the class described, the combination with an oil reservoir having an inner block portion, said portion having a passage-way connecting the interior and the exterior of the reservoir, a cylinder communicating with the passage-way through the side walls thereof, a plunger operating in said cylinder, an eccentric actuating said plunger, a drive shaft for the eccentric, a second cylinder communicating with the passage-way through the side wall thereof, a conical valve operating in-said second cylinder, a hooked stem to the valve, a cam on the drive shaft for engaging with the stem, a helical spring embracing the stem and adapted to seat the valve when released by the cam and a valve in the passage-way, said valves being located on opposite sides of the plunger.

WVILLARD ARANZO ODELL.

Witnesses:

K. MCPHAIL, GERALD S. ROXBURGI-I.

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