US413295A - Milton s - Google Patents

Description

(No Model.)

M. S. CABELL.

Y OIL CUP. No. 413,295. Patented Oct. 22, 1889.

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UNTTED STATES PATENT OFFICE.

MILTON S. CABELL, OF QUINOY, ILLINOIS, ASSIGNOR TO THE CONSOLIDATED MANUFACTURING, COMPANY, OF WASHINGTON, DISTRICT OF COLUMBIA.

OIL-CUP.'

SPECIFICATION forming part of Letters Patent No. 413,295, dated. October 22, 1889.

Application tiled March 21, 1889. `Serial No. 304,162. (No model.) i

To all whom, z5 may concern,.-

Beit known that I, MILTON S. CABELL, a citizen of the United States, residing at Quincy, in the county of Adams and State of Illinois, have invented certain new and useful Improvements in Oil-Oups; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to that class of oilcups which are employed for automatically furnishinga continuous supply of oil to the bearings of machinery which is located within steam-chambers, and more especially to that class of lubricators which eiiects the oiling of bearings and frictional parts by mingling the oil with the steam in any desired relative proportion, so that it will be carried therewith to the point or points where it is required.

The object of the invention is to utilize condensed steam, either under pressure or not, to cause the oil to flow into a delivery-pipe, and to so regulate the admission of the condensed steam and the iiow of the oil that the lubricant may be supplied Ain any desired quantity and with any desired speed.

To this end the invention consists of new and improved means for attaining the desired results, allas hereinafter fully described, reference being had to the accompanying drawings, forming a part of this specification.

In the said drawings, Figure l is a side elevation of my improved oil-cup, the same bereference are used J is a cock, whose upper extremity j car ries a screw-thread similar to that lettered g. A is acurved metallic arm, approximately of the shape shown in Fig. 2, and having openings near each end which are screwthreaded, so as to iit the screws g and j. When this arm is screwedtightly upon these screws, the cup is supported thereby above and iu direct alignment with the cock J P is a pipe, seated at its lower end in the screw-threaded upper extremity of a passage p, which extends through the guard, and the said pipe P projects upwardly within the body B of the cup nearly to its top, as shown in Fig. 2. The lower end of the passage p is led to the center of the lower threaded end g of the guard, and is internally screw-threaded similarly to its upperend. A"dripornozzle N is screwed into this lower end and projects downwardly. Intermediately Vbetween its ends the passage p is provided with a stopcock E, preferably, butnot necessarily, of the form illustrated.

The' guard G is provided with a second passage or inlet e', which opens into the bottom of the body B and outwardly into. the pipe I, a second stop-cock F being seated in the guard G, and preferably on the side opposite to the above-mentioned stop-cock E, to regulate and control the iiow through said inlet t'.

The extreme lower end of the screwthreaded projection g and the extreme upper end of the screw-threaded projection j are recessed ann ularly around their central bores, and a short piece of glass tubing S, of sufficient diameter to lit the recesses and of suicient thickness and strength to withstand. somewhat rough usage, is inserted, as shown in Fig. 2. A suitable kpacking 7c su rrounds the tube S and abuts against the ends of the projections g and j, and packing-nuts K, centrally bored, so as to loosely embrace the glass tube, take onto the exterior threads of the projections and compress the packing when screwed down tightly to effect a close joint at either end of the glass tube, in a manner well understood in the art. When the glass tube is in place, it will surround the nozzle N, and the lower end of the latter will be visible through the glass tube between th nuts K, as seen in Fig. 1.

At any suitable point in the bottom of the body B a small petcock R `is inserted, by which the contents of the body of the cup may be drawn oft at will. j

IOO

. oil flowing down pipe P to maintain the level The operation of my improved oil-cup is as follows: The pipeI being connected to the steam-pipe T at a point t somewhat above the top of the body of the oil-cup, and the pipe J, leading from the cock J, being led into the steam-pipe at any suitable point below the oil-cup, steam from the pipe T will pass into the pipe I and become condensed therein to a certain extent. The body B having been filled or nearly iilled with the lubricating-oil and the 'cap C tightly closed, if now the stop-cock F be slightly opened, the condensed s team from pipeI will liow through the inlet-piper' into the body B beneath the oil, and the latter will rise a trifle, enough of the oil in the body across the top of said pipe. The stop-cock E being now slightly opened, this overflow of oil will be permitted to How through the passage p, and will drip from the nozzle N into and upon the cock J, such dripping being very plainly discernible through the glass tube S. 1f now the cock J is opened, this oil will ow through pipe J into the steam-.pipe T, where it will mingle with the live steam and be carried forward to the cylinder to lubricate the piston therein. It will be seen that the stopcock F controls the iiow of condensed steam into the body B beneath the oil, and this cock may be opened to a greater or less extent, according as the pressure necessitates. The stop-cock E controls the iiow of oil after it has overflowed into the pipe P, and prevents a too excessive flow thereof to the nozzle N. For instance, if the pressure were great, the condensed steam admitted through the inlet 'L' would quickly raise the body of oil and completely fill the pipe P. In this case, if the stopcock E were opened to a too great extent, an undesirably large quantity of oil would be passed through the nozzle N, and in a stream rather than in drops. To overcome this the stop-cock E is opened only very slightly, so that, no matter how great the pressure, only the desired amount of oil is permitted to pass downwardly to the nozzle. On the contrary, if the pressure were very light, this difficulty would not arise. The cock J is used simply to admit the iiow of theY lubricant tothe ma- `enter beneath the oil in the body B, the oil will be driven down the pipe P in undesirably-large quantities. On the contrary, if

the pipe I be too short, the steam therein will not condense, but will be admitted as steam beneath the oil, and will rise in bubbles through the latter and pass down the pipe P out creating a compression of the water, the

oil, or the air within the body, and regulate 'the outiow of oil from the pipe P to the nozzle N, so that it will drip from the latter and be plainly discernible. The -body B may be filled wit-h oil from time to time by removing the cover C, and the pipe P may be unscrewed and withdrawn from the open upper end of the body for cleaning when desired. When the oil in the body has been allV consumed and the operator observes water dropping from the nozzle N, the stop-cock F is closed, the petcock R is opened, the cover C is removed, and the water within the body B is drawn off. The petcock R is then closed, the body filled with oil, the cover replaced, the stop-cock F reopened, and oil again flows from the device. When it is desired to remove the glass tube S for cleaning or repair, the threaded projection g of the guard G is unscrewed from the arm A, the nuts K removed, the arm AV unscrewed from the threaded project-ion j of the cock J, and the cleaning may take place. I have discovered, however, that by constructing the arm Asubstantially as herein shown, and by making the glass tube a triiie shorter than the distance between the bottoms of the above-mentioned recesses, the nuts K K can be operated by an ordinary wrench and the glass tube withdrawnwithout entirely disconnecting the several parts of my device, and this I claimV is a decided improvement and advantage over oil-cups similiar in general construction to this and which have been heretofore made.

NVhat I claim as new is- I. The combination, with an oil-cup provided on its lower end with a guard formed with an inlet leading to the cup and an outlet leading therefrom, of a supply-pipe communicating with the inlet, a pipe located in the cup and communicating with the upper end of the outlet, a nozzle secured to and communicating with the lower end of such outlet, and two stopcocks, one for the inlet and the other for the outlet, as and for the purpose set forth.

2. The hereindescribed oil-cup, the same comprising the body B and the guard G, having an ext-eriorly-threaded extension g, provided with a central perforation, and with an enlarged recess around the lower end of said.

perforation, in combination with the cock J, having an exteriorly-screw-threaded projection j, provided with a central perforation, and with an enlarged recess around the upper end of said perforation, and the glass tube S, its ends fitting in said recesses, and packing-nuts K, engaging said exterior screwthreads at their ends, and with the curved arm A, having threaded apertures near its IOO IIO

ends enga-ging said proj ections above `amd below the g1ass.tube,as and for the purpose described.

3. In an oil-cup, the guard G, having the passage j) and the inlet 1T, the pipe P, screwed into the upper end of said passage, the drp-noz Zle N, screwed into the lower end of said pessage, and the pipe I, connected 'with said inlet, in combination with the stop-cock E, for

1o controlling the How of oil through said passage, and the stop-cock F, for controlling the ow of water through said inlet, substantially as described.

In testimony whereof I affix my si gnature in presence of lawo witnesses. f

- MILTON S. CABELL.

Iitn esses:

OTTO G. SCHROEDER, N. L. COLLAMER.

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