US1788033A - Air-line oiler - Google Patents

Description

'Jan. 6, 1931. F. M. SLATER AIR LINE OILER Filed Dec. 1, 1928 INVENTOR. 1 5 a? M67 atcz HIS ATTORNEY 25 s Figure 1 is a Patented Jan. 6, 1931 1 "UNIT'.

s P T Fri-CE FRED M. SLATER, OF EASTON, PENNSYLVANIA, ASSIGNO R TO INGERS OLL-RAND GOM- PANY, OF JERSEY CITY, JERSEY, A CORPORATION OF NEW JERSEY AIR-LINE ILER Application filed December 1, 1928. Serial No. 323,089.

This invention relates to oiling devices, but more particularly to an air 11116 01181 adapted to be attached to a pressure fluid supply line used for conveying pressure fluid to rock drills and other devices intended to be lubricated. l I g The, objects ofthe invention are to prevent interruptions in drilling operations for the purpose of introducing lubricant to the 0 rock drill, to insure a constantand uniform delivery of oil in a suitable state into the pressure fluid flowing through the oiler in any of the various positions which the oiler may occupy, to eliminate the chances of flooding the main passageway with oil when the machine to whichthe oil is being supplied is idle, and in general, to simplify'the construction and to reduce thecost of manufacturing oilers of this type to av minimum.

e Other objects will be in partobvious and in part pointed out hereinafter. In thedrawings illustrating the invention andv in which similar reference characters refer to similar parts. .2

longitudinal sectional elevation of an oiler constructed in accordance with the practice of the invention, and

Figure 2 is a transverse view taken through Figure 1 on the line 2-2 looking in the direction indicated bythe arrows.

Referring more particularly to the drawings, A designates generallythe casing of the oiler comprising in this instance a pair of heads B and C and an intermediate tubular 5 portion D. the interior of which-serves as a 1 reservoir E for oil. ,The oil may be introduced into'the reservoir E througlra filling opening -F in the head B. The outer portion of the filling opening'F. is threaded as atG rote receive a threadedplug H whereby the filling opening F may be sealed. The heads B and C may be secured to the tubular portion 1) in any suitable manner, such as by welding or other well knownrnethod which will assure fluid tight joints between the.

tubular portion D and theheads.

i The heads B and C are providedwith-pa's- I sages J andKthe outerportions L of which are threaded to enable the oiler to be threadedlyconnected to a pressure fluid supply line V interposed between the heads B and C and extending in this instance coaxially through the reservoir E is a hollow member or pipe P which may have a bore-substantially equal in cross'sectional area to the passages J and K. The interior of the pipe P fornis apassageway Q, and serves as a continuation of the pressure fluid supply line. The pipe P is preferably clamped fixedly between the heads B andC and extends in this instance with its ends into recesses R in the heads.

. The means whereby pressure fluid is introduced' into the reservoir E to exert a pressure on the oil therein and by which oil is conveyed from the reservoir to be delivered into the passageway Q consists in this instance of a tube S which maybe secured to the pipe P only at its ends T and U. The ends T and U project into apertures V in the pipe P andinay, if desired, extend a slight distance into the passageway Q so that a portion of thepressure fluid flowing through the passageway Q maybe readily diverted into the tube S, The apertures V in the pipe P are preferably located in the ends of the reservoir E'so that advantage may be had of any slight variations in pressure between the points at which the ends of the tube S communicate with the passageway Q.

From the end T of the tube S'the tube extends in a forwardly, or right hand, direction, as Figure l is viewed, and generally longitudinally through the reservoir E and is developed into a looped portion W which partly encircles the pipe P andpreferably lies near the forward end of the reservoir E. From the loopedportion W the tube extends rearwardly through the reservoirfE and is developed into alooped portion X which also rearward end of the reservoir E, although on the opposite side of the pipe to that on which the looped portion W lies.

From the looped portion Xthe tube S again extendsin a generally longitudinal direction through the reserivoir E to the point at which the end U is secured to the pipe P; Due to this arrangement a portion of the pressure fluid flowing through the main passageway Q, Will be diverted into the tube S by either the end T or U, depending upon the direction in which the main stream of pressure fluid flows, and will again issue from the other end of the tube into the main passageway.

In the looped portion X are formed in this instance a pair of ports Y which afford comentire length of the tube and will municationbetween the reservoir E and the interior of the tube at this point. The ports Y are preferably of small cross sectional area so that oil in only minute quantities may pass therethrough. These ports Y also serve to admit pressure fluid from the tubeinto the reservoir to act on the oil therein for forcing it into the tube S. Similarly, in the looped portion WV are formed a: pair of ports Z, only one of which is shown, for admitting pressure fluid from the tube S into the reservoir and for admitting oil from the reservoir E into the tube.

If desired screens 6 may be disposed'over the ports Y and Z in order to insure against the admission of solid matter from'the reservoir E, such as may be entrained by the ,oil in the reservoir E and such lubricant.

r The operation of the device is as follows: With the oiler connected to the pressure fluid supply line-O in such manner that the pressure fluid will enter the oiler at the passage J and will flow in the direction of the passage K, a portion of the presure fluid will enter the tube S at the end T and will flow through the again issue at the end U of the tube into the main passageway Q.

Immediately after the pressure fluid has been thus supplied to the main supply line, pressure flowing through thetube S will enter the reservoir E and will create a pressure therein equal to that in the main supply line. If then the machine, such as a rock drill, which is intended to beh bricated is set in opera-tion, the fluctuations in pressure due to-the cut off and admission of pressure fluid into the rock drill will result in a corresponding fluctuation in the reservoir E.' These pulsations will have'the eflect of emulsifying the oil will then enter the ports Y and will be carried by the pressure fluid flowing through the tube Sto the end U of the tube Where it will be injected 2 into the main pressure fluid stream and will be carried thereby to thedrill.

. llVith the oiler in the positionillustrated, the ports Z may of course lie 'above the body of oil in the reservoir E. ,These portsZ will 7 I then onlyfserve to admit pressure fluid into the reservoir. By properly arrangin g the ports Y and Z with respect to each other one of these ports is certain to be submerged in V the oil in the reservoir irrespective of any e position which the oiler may assume and an adequate supply of oil to the passageway Q,

will therefore be assured.

The present invention has been found to be exceptionaly'well adapted for the purpose intended, particularly foruse in connection with drilling operations where the oiler is attached to the supply line and will therefore constantly be shifted about from one position to another. One of its principal advantages is that irrespective of any position in which the oiler may lie it will be impossible for the oil in-the reservoir E to drain into the main passageway Q after the supply of pressurevfluid to the oiler has been shut off. This is partly due to-the fact that one of the ports Y or Z will at all times lie above the level of the oil in the reservoir. Therefore, any pressure fluid which may exist in the reservoir after the supply thereto has been cut-off Will at once escape to the main passageway through the uncovered port in the tube without forcing the oil into the passageway as is frequently the case in oilers of this type.- For the same reason it is impossible for any considerable amount of oil to drain from the reservoir into the passage way in the absence of pressure fluid in the supply line as a'portion or portions of the tube will] always lie ata higher level than 'thesurfa'ce of the oil. As a consequence only a small portion of the tube may be filled with oil which may, upon the resumption of drilling, be forced into'the passageway Q, but the amount of oil thus stored in the tube will not be of sufiicient quantity to result in the undesirable flooding of the drilling DIBCllanism or other machine to which the lubricant is being supplied.

I claim: v

1. An air line oiler, comprising a casing forming a reservoir for oil, a main passageway'for pressure fluid, a passage in the casing communicating at itsends with'the main )assa ewa at Joints near the endsof the sageway at points spaced along the length of said passageway to deliver oil'i'nto the passageway and pressure fluid into the reservoir, said tube having a port to admit oil from the reservoir into'the tube and pressure fluid from the tube into the reservoir.

3. An air line oiler, comprising a casing forming a reservoir for, oil, means forming a passageway for pressurefluid throughj'the reservoir and interior of the tube.

ends of the reservoir,

.the ends of the reservoir, looped portion casing, and a tube in the casing having a plurality of longitudinally extending portions and comunicat-ing at its ends with the passageway at points spaced along the length of said passageway to deliver oil into the passageway and pressure fluid into the reservoir, said tube having a port to admit oil from the reservoir into the tube and pressure fluid from the tube into the reservoir.

a. An air line oiler, comprising a casing forming a reservoir for oil, a main passageway for pressure fluid, a tube in the reservoir communicating at its ends with the main passageway at points near the ends of the reservoir to by-pass a portion of pressure fluid from one point to another in themain passageway, and ports in the tube located so that at least one portis submerged in the oil and at least one port of the oil.

5.;in air line oiler, comprising a casing forming a reservoir for oil, means forming a passageway for pressure fluid through the casing, a tube opening with its ends into the passageway to deliver oil from the reservoir into the passageway and pressure fluid from the passageway into the reservoir, and looped portions in the tube lying in the ends of the having ports to afliord communication between the reservoir and the 6. An air line oiler, comprising a casing forming a reservolr toroil, means forming a passageway for pressure fluid through the casing, a tube opening with its ends into thepassageway and through which pressure fluid flows to deliver oil from the reservoir into the passageway, looped portions in the tube lying in opposite sides and in opposite and a port in each looped portion affording communication 'between the reservoir and the interior of the tube.

7. An air line oiler, comprising a casing forming a reservoir for oil, means forming a passageway for pressure fluid through the casing, a tube opening'with its ends into the passageway and through which pressure fluid flows for conveying oil from the reservoir into the passageway, looped portions in the tube lying in opposite sides of and near and aport in each for admitting pressurefluid into the reservoir and oil from the reservoir into the tube.

8. An air line oiler, comprising a casing forming a reservoir for oil, a hollow member extending through the casing to form a pas sageway for pressure fluid, a tube coiled through the reservoir and opening with its ends into the passageway adjacent the ends of the reservoir for conveying pressure fluid from the passageway into the reservoir and oil from the reservoir into the passageway, and a port in the tube for admitting oil from lies above the surface the reservoir into the tube and pressure fluid from the tube into the reservoir.

9. An airline oiler, comprlsmg a casing forming a reservoir for oil, a hollow member extending through the casing to form a passageway tor pressure fluid, a tube opening with its ends into the passageway at points near the ends of the reservoir and having looped portions lying adjacent the casing, and a-port in each looped portion to aflord communication between the reservoir and the interior of the tube. I

10. An line oiler, comprising a casing forming a reservoir for oil, a hollow member extending through the casing-to form a passageway for pressure reservoir opening at its ends into the passageway and through which pressure fluid flows, said tube comprising'a pair of looped portions lying in the ends of the reservoir and a plurality of portions extending longitudinally of the reservoir, and a port in each looped portion for admitting oil from the reservoir into thetube and pressure fluid from the tube into the reservoir.

11. An air line oiler, comprising a casing forming a reservoir for oil, a hollow member extending through. the casing to form a passageway for pressure fluid, a tube in the reservoir communicating at its ends with the passageway at oints near the ends of the reservoir and t 'rough which pressure fluid flows, apair of looped portions in the tube lying in the endsof the reservoir and on opposite sides of the hollow member, a plurality of portions in the tube extending longitudinally of the reservoir and connecting thev looped portions, and ports in the loopedportions for admitting oil from the reservoir into the tube and pressure fluid from the tube into the reservoir.

In testimony whereof I have signed this specification.

I FRED M. SLATER.

fluid, a tube in the v ISO

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