US702068A - Oil-cup. - Google Patents

Description

(Application med .m1, 1s, 1902;)

(No Modal.)

Niiinn, STATES PATENT' OFFICE.

JOEL B. L. MCKENZIEEUF RAHWAY, NElV JERSEY.

SPECIFICATION forming part of Letters Patent No. 702,068, dated J' une 10, 1902. Application filed January 13, 1902. SerialNo. 89,402. (No model.)

To all whom, it may consent:

Be it known that I, JOEL B. L. MCKENZIE, a

. citizen of the United States, residing at Rahway, in the county'of Union, in the State of New Jersey, have invented a certain new and useful Improvement in Oil-Cups, of which the following is a specification.

The improved oil-cu p is intended to be carried on actively-moving pieces of machinery which shall have more or less of a reciprocating motion. I provide an easily-moving valve controlling the ow ofdoil and a looselymounted part carried on theoilcnp arranged to actuate the valve by its inertia as the motion of the actively-moving. cup is reversed. I use the term inertia to include both the resistance to moving fr'om a state of rest and the resistance to stopping from a state of motion. Ilirnit the extentof the motion of such part relatively to the main body of the oilcup, make the motion of thevalve conveniently adjustable within wide limits, and nallyinsure that the valve shall always stand shut when the engine is stopped irrespective of the position of the crank' and insure against any obstruction of the actionl in case there shall accidentally be solid matter of any kind in the oil.

The end attained of feeding with certainty.

while operating and entirely arresting the lfeed when stopped in any position has been partially attained before; but my construction is better in important points, which will be pointed out in the claims. f

The following is a description et what I consider the best means of carrying out the invention.

The accompanying drawings forni a part of this specification.

Figure 1 is a side elevation with certain portions broken away, showing interior parts iu central vertical section. Fig. 2 'is a corresponding plan View.' Fig; 8 is an elevation at right angles to the view in Fig. l.- Fig. 4

is a cross-section of the valve-rod at the, lineV 4 4 in Fig. 4". Fig. 5 isa side elevationl of a portion', showing a modification. Fig. G is a central vertical section showing another m odication. spending to Fig. Il.

Similar letters of refcreneeilldicate corre- Fig. 4 is a side elevation corre-4 sponding .parts in all the figures where they appear. i j

A is the main body of the cup, which may be of brass, having two liberal apertures on opposite sides, The tubular base A is screwthreaded externally. The upper portion of riable, but is never sufficient to lift thelower end out of the enlarged bore or chamber'a'.

The o'il'can always flow down through the small annular space between vthe rod and the cylindrical portion of the bore a' and can ilow downward through the smaller opening a at intervalswhile the valve is lifted.

C is a cylinderof glass within the main-bod y A andabutting by its smooth upper and lower edges on cork washers C and C2. This coniplete glass cylinder constitutes the oil-receptacleLthe niain body A-serving as a supporting 'and protecting case, the liberal apertures or windowsv therein allowing the vquantity of oil remaining'in the cup to be easily 'recognized under all conditions. I

D is `a cover screwed tightly into the bodyy A in the erdinaryand obvious manner, making a close t around therod BI in asleeve tapped in a central `orifice d, countersunk, as shown. \Vhen the apparatus is working, the conical space thus provided is partially Iled with oil,whicl1 is splashed about in the cup' and alternately drawn up and carried down by its adhesion to `the slightly reciprocating rod.

The lower end of the sleeve has a hanging lipl providing an annular space ,around the rod in which I fit a cork washer Il, extending a little deeper than the lip. Below thisis a loose collar E, under which abuts'a helical springv F, which exerts a tension acting on Vthe rod through the medium of a transverse pin G. This spring contributes its force to the gravity of the rod to induce the prompt elosingof the valve to remain closed whenever the engine IOO is stopped, but its force must bc so gcntlehthat i the inertia ofalight pendulous partcan overconie it.' `I provide for adjusting this tension by' providing several transverse holes b b2 b3 b4 one above another in the rod B, any one temporarily forced upward by the finger, and

the pin G is shifted into a hole b' above or a hole b2 below its former position. AThe holes are bored in various directions, (see Fig. 4,) which arrangement allows them to be very near together, cutting into each other at the. center, if desired. This gives a capacity for very delicate adjustment.

I. provide for the admission of air to the interior of the cup as the oil is consumed. To eect this, a hole b3 is bored radially into the rod B and caused to communicate with a central passage b4, which extends down from the upper end'of the rod, and the cap P is provided with'a corresponding central hole. This hole p in the cap communicating through the axial passage b4' and the radial passage b3 forms a sufficient passage for the induction of air. Thepassage thus arranged is well shielded, and I have determined by experiment that oil is not thrown up into this passage, except to avery small distance, even with the most rapid action of the engine.

J is a screw-plug which by the aid of a leather washer J controls a convenient' filling hole through whichV the cup may be charged at intervals.

A suflcient length at the upper end of the rod B is screw-threaded, as indicated-by B2, and on this is fitted an interiorly-screw-threaded collar M, above which is acorrespondingly! tapped knob P.

I is a horizontal shaft mounted in a long bearing D', formed in an attachment D2, rigidly -secured on the cover D. The outer end of the shaft I overhangs and carries a pendent arm I', which as the device is reciprocated is acted on by inertia and caused to vi brate between two stops D*1 and D5,which form.

part of the attachment D2. The inner end of the shaft I carries a rigidly-fixed toe I2,`

which at each revolution of the engine acts under thecollar M to lift the rod and open the valve.

The extent to which the valve will be lifted and the length of time which it will remain open are modied at will by raising and lowering the collar M. Under ordinary conditions this collar is set at such height that the rod B is lifted a little, but only a little, for a brief period and allowed to sink again to its seat at each revolution of the engine. If it be desired to supply the oil more liberally, the cap can be slackened,the collar` M lowered by turning it, and the knob P again tightened down upon it.- Now the same motion of the arm I between the stops D D?.

will lift the rod higher at each revolution of the engine and hold it open longer, thus permitting more oil to descend to lubricate the bearing. (Not shown.) The valve is free when the pendent arm I hangs in or near its central position. This condition is certain to obtain whenever the engine is stopped, so that the oil will be certainly' retained ready for starting again.

I esteem the following to be specially important qualities in my oil-cup: first, that l the extent of the swinging motion of the pendent arm I is limited by so simple and substantial a device as the two stops D and D5, each constituting a part of a single integral piece which -may be :fixed on the cover by a single fastener, and that the extent of the lift of the valve may be regulated with any required fineness and to a very great extent by simply screwing the collar M up and down; second, that a partial vacuum and a strong pressure above atmosphere alternately obtain in the recess a at each rise and descent of the rod B, causing the oil to be irst'forcibly drawn in and strained through the very limited space around the base of the rod in suchrecess and a moment later tov be forced downward through the oil-passage c by the descent of.` the said rod, and, third, that the force of the spring F need not be graduated nicely, but caribe varied as required by simply'compressingit upward and changing the pin G into a diifereit hole.

Modifications may be made' without departing from the principle or sacrificing the advantages of the invention. Instead of screwing the part P down tightly upon the collar M after each adjustment I can keep it much higher and without shifting its position can use a helical spring exerting so milch force between these parts that it will by the friction due to the axial tension of the spring insure the holding of the collar after each ad justment. Such an arrangementis shown in Fig. 1i, the spring being marked Q.

V A horizontal shaft substantially equivalent to the shaft I and correspondingly actuated by the' inertia ofa pendent arm I may inlOO -valve operate throughscrew-threads to raise it by turning motion. Fig. 6 shows such a modiicatiori.'l In this a thickened portion B55# of the rod Bis provided with a quick screw-thread and matches in a corresponding internal thread produced in the boss D'. There is a valve formed on the lower eX- tremity of the rodB and working over a seat within a cylindrical space aj, corresponding to a', except that the rod has a turning motion. `The spring Fiji, coiled around the rod, tindsfan abutment at the upper end in a fixed part and acts at its lower endnot only to depress the rod B E, and therefore to urge the valve gently but effectively into contact with ,its seat inthe bottom of the cylindrical looseradially' on the cover, and the toe I2# extendsA rod B# in the direction to raise itand openthe valve. p During the remainder of the time the arm I hangs perpendicularly the valve-rod B# is free and is caused to turn under the innence of its spring Fi# until -it is again fully depressed with lthe valve resting H and the recess holding the same.

firmly in its seat.

Parts of the invention can be used without others. I can dispense with the cork washer The airpassage b3 b4 may be omitted, allowing the air to enter through the loose joint around ythe .rod B.

The cover D may be formed with a thick boss cast integral therewith instead of a separate sleeve. Such construction is shown in Fig. 6 and may be applied with equal success .1 arranged to be vibratcd byits momentum,

in combination with the fork D4 D limiting its play, and with the toe l2 rigidly connected to such arm and extending horizontally, adapted to lift said valveerod at one extreme of its traverse, all arranged'for joint operation substantially'as hereinv specified.

2. In a lubricator for use on moving parts of machinery, the valve-rod B and the collar M adjustable thereon, and the pendent arm I' arranged to be vibrated by its momentum,`

in combination with the fork D4 D-5 limiting its play, and with the toe I2 rigidly connected to such arm and extending horizontally, ar

ranged to lift said valve-rod at one extreme of its traverse, and the recess a communicating with the oil-'passage below and receiving the nearly tight-fitting base of the said rod, adapted to form a partial vacuum at' each vibration,`and with the spring F and adjustable pin G adapted to vary the force with which the rod shall be depressed, all arranged to serve substantially as herein specific In testimony that I claim the invention above set forthI affix my signature in presence of two witnesses.

JOEL'B. L. MCKENZIE. Witnesses:

J. B. CLAUTICE, M. F. BoYLE.

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