US112515A - John ernst uhl - Google Patents

Description

tttiitt JOHN ERNST UHL, OF RENOVG, PENNSYLVANIA.

Letters Patent No. 112,515, dated March '7, 1871.

IMPROVEMENT IN LUBRICATORS.

The Schedule referred to inthese Letters Patentl and making pau-t of the same.

I, JOHN ERNST UBL, of Renovo, in the-county of Clinton and State of Pennsylvania, have invented a new and improved Lubricator for Steam-Engines andl other Machinery, of which the following is a specifiv cation.

Nature ami Objects of the Iiwmztion.

My lubrcator is provided with a customary reser voir, sui-mounting a hollow stem, which may be screwed into the cap of a valve-chest, journal-box, or other object tu which the lubricator is to he applied. Within the hollow stem is 'a vertically-sliding rod, having on its periphery one or more grooves' or notches, so located that as the rod approaches its upper position they willreceive a supply of oil, aud as the rod descends they will deliver the said oil into one or more canals, by which it is conducted to the bearing or within the steam-chest or cylinder, sthe case may be.

' The rod is made hollow, to conduct air or steam to 'the reservor above the oil, so that the pressure within the reservoir may equal that where the oil is to be delivered, whether the said pressure be that of -th atmosphere or of, boiler-steam, I The rod is thrown up by a tappet movement, and may be made to descend by its own gravity or by means of a spring.

Bymeans of an adjustable nut or collar ou the rod the capacity` of the oil-notch or groove may be regulated as required.

In order tolteep the oil from congealing or becoming thick -iu cold weather I introduce within the reservoir a metallic pipe containing steam, which may be taken directly from the boileil orti-om the valve-chest, or even from the exhaust, and is provided at its lowest part with a cock for the `purpose of discharging water of condensation. If exhaust steam is used this cock may he dispensed with and the steam may be discharged into the open air.

For the purpose of indicating at all times the quantity of oil in the reservoirl provide a tube of transparent material, communicating at top and bottoni with the interior of the reservoir, and pat-hed at its ends.

Description of the Accompanying Drawing.

Figure l is a vertical longitudinal section cfa steamchest and valve with my luhricatorappl'ied.

.Figure 2 is a vertical section of the luhricator detached, the rod and the upper part of' the cap being shown in elevation.

Figure 3 is an elevation of part of the rod, show ing in section an adjustable nut or collar, by which the capacity of the oil-groove may be regulated as required.

Figure 4 isa vertical section of the reservoir, illustrating my mode of applying a steam-pipe lfor heating, apd a vtransparent gauge-tube to indicate the quantity of oil.

Figure 5 is a horizontal section at x x, iig. 4.

General Description..

A represents a steam-chest of common form.

B, its cap. G, a portion of the steam-cylinder, ou which is seated the valve D.

E is the oil-reservoii of my lubricator, the stem F of which is screwed iuto the cap B of the valve-chest, or secured in any convenient manner.

Within the stem E works a hollow rod, G, fitting the cavity in the said stein. A packing may be ap plied to this rod, as shown at g, but this is not always found requisite.

E is a collar, limiting the descent of the tube G. This collar may either be. made in one ypiece with the tube, or may be screwed thereon, as illustrated inA iig. 3, for the purpose of changing the capacity of Athe groove g', by which oil is carried out of the reservoir each time the rod descends.

I is a tube attached to the top of' the hollow rod Gr, and communicating with the interiorthereof, through which steam or air (as the case may be) is admitted above the oil, to equalize the pressure within the reservoir with that at the point where the oil is delivered.

J represents a bell-crank lever, operated by a tappet, K, on the valve or slide or other object to' be lubricated.

L is a spring, operating ou a follower, M, to de-A press the rod when released,

N is an opening. to conduct the oil through the stem F; or, instead of this, branching pipes N, tig. 2, `may be employed for 'the purpose of oiliug the guides of a cross-head or any similar piece of machinery.

P is a steam-pipe 4passing through the interior of the reservoir to prevent the cooling of the oil. The water of condensation in this pipe may be drawn'oii' through a cock, Q. n

Within a recess, It, in the reservoir E, is applied a glass tube, S, the upper and lowerends ot' which are packed steam-tight by means of'rings s s', of leather or other proper material.

r i" are apertures, through which communication is afforded between the tube Sand the inside of the reservoir, above and below.

A screw, T,lls the aperture iu'the top of the rese ervuinthrough which the tube S is introduced, and bears upon the upper packing s.- The said 'screw is perforated at its lower end longitudinally and transversely, as shown in iig. e, in order to: communicate with the aperture fr and with the interior of the tube.

U is a, screw-ca to close the 'top of the reserveir.

Claims.

low the oil, as explained.

3. The tappet movement K J, in combination with the verticallyfreciprocating rod or tube G and reservoir E, as described.

4. The combined arrangement of; the guugeetube S, recess R, packing-rings s s', communication-ports r r', and screw-'cap T, to indicante the quantity of oil contained in the reservoir.

b inatiou with the reservoir E, iu the manner und for the purposes specified.

Witnesses: J. E. UHL.

WM. H. BRERETON, J r.,

OCTAVIUS KNIGHT.

the reservoir and equalize 'the pressure above and be' 5. The steam-pipe P and cock Q, employed iu eo1n-V

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