US239462A - jones - Google Patents

Description

Patented Mrch `29, |881p (NoModel.)

S. W, DAVIS.v

Lubricating Device.,Y No.` 239,462.

W J V wj .i V.. .k u f 1. n

` UNMED'l "STATES PATENT OFFICE.

SAMUEL W. nAvis,A or WILMINGTON, DEL., ASSIGNon or ONE-HALE To WILLIAM scooPEr., THOMAS J. JQNESJOHN w. GADBURY, JoEL'oAn- Y EURY, AND JONATHAN EvANs, oru PHILADELPHIA, PA.

i LUBRICATINGDEVIC.

SPECIFICATION forming-part of Letters Patent No. 239,462, dated March 29, 1881. Application iiled January 17, 1881. (No model.)

To all whom it may concern: g

Be it known that I, SAMUEL NV. DAVIS, a

citizen of the United States, residing in Wil-` mington, Delaware, have invented certain 1m- I provements in Lubricating Devices, ot' which the following is a'specitication.

My invention relates to `certain improvements in that class of lubricatorsin which the oil liows to the bearing through a valved open- 1o ing which regulates the tlow, the main object of my invention being to so construct the regulating-valve as to accurately govern the tlow of oil andreadily cut ott' or reestablish said iiow, a further object being to permit the ready r5 iilling of the lubricator and the free entrance ot' air to the oilreservoir.` i i .In the accompanying drawings, Figure l is a vertical section otfmy improved lubricator 5 Fig. 2, a sectional plan on the line Vl `2; Fig. 2o 3, a sectional plan on the line 3 4; and Fig. 4, an enlarged section of part ot' Fig. l, showing the parts in a different position. The casing of the lubrieator comprises the lower portion or body, A, and cover B, an interna-lly-threaded recess in the cover being adapted tothe threaded upper end of the bod y, and the glass vessel D, forming the oilreser voir, being clamped between these two portions ot' the casing, suitable packing-strips be- 3o ing arranged at each edge of said vessel D to insure tight joints.

The body Aand cap B may be provided with openings, as shown, so Athat they may be screwed together by` means of a spanner, or

' they may have hexagonal or octagonal portions adapted to an ordinary wrench.

The base ofthe lubricator has a central tubular projection, a, the lower or external portion of which is threaded `for adaptation to 4o any desired piece oi' machinery, and in said tubular projection are formed two tapering valve-seats, b and d, adapted respectively to valves e and j',"the valve e being formed by tapering the lower end of a spindle, E, and the valve f consisting of a plug the threaded stem of which is adapted to an internallythreaded openin g in the said spindle E. Both valves are'made in the form ot inverted frustums of cones; but the valve j' is of a much less degree of taper than the valve c, and owing 5o to its threadedstem is adjustable in respect to said valve c, the lower end of the plug being notched for the reception of ascrew-driver, whereby the adjustment of the valve may be ei'ected when desired. The spindle E is eX- 55 panded and made tubular at the' upper en d, the exterior of this expanded portion having formed thereon a screw-thread, which is adapted to an internally-threaded projection, g, on the cover B, the threaded portion ofthe spindle 6o terminating below in a shoulder formed by 'aflange, m, on the spindle.

To the spindle E, above the cover B, issecured a cap, F, in the top pf which is a central opening coinciding with the passage n ofthe tubu 65 lar spindle, openings M serving to establish communication between said passage In and the interior ot' the oil-reservoir D, so that oil poured into the passage a will at once find its way into the reservoir.

Under ordinary circumstances the opening` in the cap F is closed by a plug, G, which may be threaded and adapted to a threaded opening in the cap, but which I prefer to make with plain sides and a central slot, the latter eX- tending above the top of the cap, so that while the entrance ot' dust and other obstructing particles is in a great measure prevented, air can at all times freely enter the passage a of the spindle and pass into the reservoir D. 8o The central slot in the plug renders .the opposite halves of the same elastic, so that there is sufficient friction to hold the said plug so firmly in place as to prevent accidental displacement, and yet permit the ready with- 8 5 drawal ot' the plug` for the introduction of oil.

When the spindle E isin the position shown in Fig. lthevalve e is in its seat b and the flow of oil to the bearing through the tubular projection a is cut off; but by turning thejcap 9o F until the shouldermof the spindle comesinto contact with the under side of the cover jBthe spindle will be elevated and the valve cremoved from its seat, so as to permitaiiow of oil between the valve f and its seat d, the volume ot which low will depend upon the position to which the valve fhas previously been adjusted in respect to the valve c. (See Fig. 4.) It will thus be seen that the valve e acts as a stopvalve, and is always lifted from its seat to the same extent on properly turning the cap F, While the valvef, which regulates the ow of oil when the valve e is open, can be so adjusted in respect to the latter as to accurately govern the area of the oil-passage between said valve fand its seat d. The cap F, being exposed, can be readily manipulated in order to open or close thevalve e, so that when the lubricator is applied to a locomotive-engine the valves can be closed instantly, thus preventing waste of oil while the locomotive is standing idle. The flange m prevents such an elevation of the spindle E as would permit more than the predetermined quantity of oil to pass the bearing, and in this respect myimproved lubricator is more advantageous than those in which the regulating devices are on the outsidev of the cup, and the governingvalve is first lifted to a greater extent than necessary, and then allowed to return to a position for regulating the flow of oil.

In order to prevent the accidental lowering of the spindle E by the jarring to which the lubricator may be subjected, I interpose between the projection a of the base and the flange m on the spindle E a spiral spring, fw, the tendency of which is to maintain the said spindle in its elevated position.

I claim as my inventionl. The combination of the reservoir D and the casing having a tubular projection and valve-seats b and d with the spindle E, having a valve, e, adapted to the seat b, and a plug-valve, f, adjustable in respect to the valve e and adapted to the seat d, said valves e and f being made in the form of inverted cones of di'erent degrees of taper, as set forth.

2. The combination of the reservoir D, the' casin g having valve-seats b and d, the spindle E, having inverted-cone valves e and f, and the external cap, F, connected to said spindle E, as set forth.

3. The combination of the reservoir D, the casing having valve-seats b and d and threaded projection g, the spindle E, having invertedcone valves e and j' and a threaded portion adapted to said projection g, and the external cap, F, connected to said spindle E, as specilied.

4. The combination of the reservoir D, the casing having valve-seats b and f1, the spindle E, having inverted-cone valves e and f, and a shoulder, m,for limiting its upward movement, as set forth.

5. The combination of the reservoir D and casing, having valve-seats b and d and threaded projection g, the spindle E, having invertedcone valves e andf and a iiange, m, and the supporting-spring w, as set forth.

In testimony whereof Ihave signed my name to this specification in the presence oftwo subsc1ibi1'1g'-n'itiiesses.

SAMUEL W. DAVIS.

Witnesses JAMES F. ToBiN, HARRY SMITH.

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