US294134A - johnston - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

H. L. JOHNSTONE.

OIL 0UP.

No.294,134. 'PatentedFeb.26.1884.

ape. With a s as a v I l-nvjani'm T.

(No Model. 2 Sheets-Sheet 2.

H. L. JOHNSTONE.

OIL 0UP.

N0. 29 L134. Patented Feb. 26, 1884.

Fi jl Witnesses- Invntnn.

UNITED STATES PATENT OFFICE.

HENRY L. JOHNSTON, OF PALMETTO, GEORGIA.

OIL-CUP.

SPECIFICATION forming part of Letters Patent No. 294,134, dated February 26, 1884.

Application liled January 16, 1884.

To all whom it may concern:

Be it knownthat I, H. L. JOHNSTON, a citizen of the United States, residing at Palmetto, in the county of Campbell and State of Georgia, have invented certain new and useful Improvements in Oil-Cups, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention has relation to oil-cups or lubricators for all kinds of journal-bearings; and its object is to provide an oil-cup of this kind, wherebya givenquantity of oil or similar fluid lubricant may in a very simple and effective manner be fed to the journal; and to this end the novelty consists in the construction of the device, as will be hereinafter more fully described,and particularly pointed out in the claim. I

In the accompanying drawings the same letters of reference indicate the same parts of my invention.

. Figure 1 is a sectional elevation of my improved oil-cup. Fig. 2 is a transverse central section through the upper part of the cup, showing the vent and its stopper; and Fig. 3 is a plan view of a vehi'cle-hub, showing the manner of securing the oil-cup between the spokes of the wheel when applied to that use.

A is the oil-cup proper or reservoir, and is provided with a screw-cap, a, for filling. The cup A is wedge-shaped in form, and its sides B B extend beyond the top 0, so as to form ears or lugs c c, by means of which the cup may be secured by screws to the spokes of a carriage-wheel, as shown very clearly in Fig. 3.

D is a central tube, its upper end secured in the top 0, and extending a short distance through the bottom of the cup.

E is a piston-rod, working in the tube D through the screw-plug F, and it is provided with a handle, G, for operating it. This handle G has a small angular arm, H,the free'end of which forms a stopper,I,for the vent-hole K.

Upon the lower end of the piston-rod E is secured a piston, L, and above this is a second piston, N, the two being separated by the collar O.

Between the upper piston, N, and the screwplug F is a spiral spring, P, which serves to force the piston-rod down to the full extent of its stroke. The tube 1) is provided (No model.)

with two or more inlet-holes, ss, communicating with the interior of the reservoir A, and in the normal position of the device these holes are closed by the piston L, which extends a short distance below them when the rod is down.

In practice, the device is properly secured in place, and the screw-cap a removed, to fill the reservoir, which being done, the cap is returned to its place. The oil or lubricant is now confined in the reservoir, and if the handle G be raised, the holes s s are opened by the piston L passing above them, and the oil in the reservoir flows through the holes 8 8 into the lower portion of the tube D, and thence to the axle or journal at the same time the holes 8 s are opened. The vent K is also opened by the stopper I being attached to the handle and raised with it. This permits a very free flow of the oil, and of course greatly facilitates the operation; and it will readily be seen that the cup is a very economical one, as there is no possibility of wasting any of the oil, but, on the contrary, itis used up to the last drop.

In practice I have found cork to be an excellent material for the pistons; but of course soft wood, rubber, or similar substances will answer the purpose equally well.

While I have shown the oil-cup attached to a carriage-wheel, I do not wish to confine myself in its use thereto, as it will be readily seen that it is applicable to all sorts of journal-bearings Wherever stated quantities of oil are needed.

Having thus fully described my invention,

what I claim as new and useful, and desire to secure by Letters Patent of the United States, 1s-

The wedge-shaped oil-cup A, having vent K, and provided with the central tube, D, having inlet-holes s s, and the piston-rod E, provided with piston L, spring 1?, handle G, and stopper-arm H I, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

L. JOHNSTON.

Witnesses:

L. S. Rom, H. M. REID.

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