US935260A

US935260A - Lubricator.

Info

Publication number: US935260A
Application number: US49407009A
Authority: US
Inventors: John Kelly
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-05-05
Filing date: 1909-05-05
Publication date: 1909-09-28
Anticipated expiration: 1926-09-28

Description

.- ELLY. RIGATOR. APPLICATION FILED MAY 5, 1909. 935,260. Patented Sept. 28, 1909.

UN 11 n JOHN KELLY, OF CHICAGO, ILLINOIS.

LUBBICATOB.

Specification of Letters Patent.

Patented Sept. 28, 1909.

Application filed May 5, 1909. Serial Ito. 494,070.

To all whom it may concern:

Be it known that I, J 01m KELLY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Lubricators, of which the following is a specification.

My invention relates to an improvement in the class of automatically-controlled lubricators or grease-cups for use in connection with shaft or journal bearings.

In the accompanying drawing, Figure 1 is a broken view in elevation, mainly sectiona on line 1, Fig. 2, showing my improvement applied to a shaft-bearing and Fig. 2 is a broken section on line 2, Fig. l. i

A shaft is represented at Z-l, journaled in bearings, one of which is shown at Into the bearing is screwed a covered cup 5 for holding the lubricant and equipped with a spring-pressed valve 6 for controlling the discharge through the neck '7 of the cup which communicates with a duct 8 in the bearing. The construction of the bearing and valved cup may be that illustrated or any other that is desired. To the stem 9 of the valve, which works through the cup cover, is connected one end of alever 10, which is fulcrumed between its ends, at 11, on an arm 12 extending from the cup.

The feature of my invention is a strap 13, preferably of leather, though other flexible material may be used, depending from the free end of the lever to hang across and in contact with the shaft, the lower end of this strap carrying, by preference, a weight 14 tending to increase the frictional contact of the strap with the surface of the shaft.

The purpose of the automatic action of a lubricator in the class to which my inventionrelates is to cause the motion of the shaft or journal equipped with it to feed the lubricant to the bearing and to arrest the feeding by the stoppage of such motion. This purpose is accomplished by my im provement in the following manner: Rotation of the shaft by the frictional contact between its surface and that of the belt, exerts on the latter a drag or pull sufficient to depress the outer end of the lever 10 and thereby raise the valve 6 to open the feed. lVhen the shaft is not in motion the valve closes under the action of the controlling spring, or by its own gravity, thereby shutting off the discharge of lubricant from the cup until the shaft is again set in motion. The device operates whichever direction the motion of the shaft may e, the strap being adapted to be extended across either side of the shaft, and should the motion of the shaft be reversed, its frictional contact with the strap will carry the free end of the latter over to cause it to hang on the opposite side of the shaft to be actuated by its motion in the manner described.

lVhile a weight is shown and described as being attached to the end of the strap to operate as means for maintaining the tie sired frictional engagement of the strap with the shaft, it is to be understood that the means may be other than the weight 14; for example, by employing a strap of greater length, the weight as a separate element may be dispensed with, and the strap of its own weight operate as such means.

lVhat I claim as new, and desire to secure by Letters Patent, is-

1. In combination with a shaft, a bearing therefor and a valved lubricant-cup connected with said bearing, a lever connected with the valve, a strap of flexible material depending from said lever, and means for maintaining the strap in frictional contact with the shaft, for the purpose set forth.

2. In combination with a shaft, a bearing therefor and a valved lubricant-cup connected with said bearing, a lever connected with the valve, and a strap of flexible material depending from said lever in frictional contact with the shaft, and a weight on the free end of the strap, for the purpose set forth.

3. In combination with a shaft, a bearing therefor and a valved lubricant-cup con nected with said bearing, a lever fulcrumed between its ends on said cup with one end engaging the valve-stem, a leather strap secured on the opposite end of the lever to de pend therefrom, and means for maintaining the strap in frictional contact toward its free end with the shaft, for the purpose set forth.

4:. In combination with a shaft, a bearing therefor and a lubricant-cup connected with the bearing and provided with a cap, a valve pend therefrom, and means for maintaining 1n sand cup havlng a stem extendlng through the strap 1n frletlonal Contact wlth szud snldcup, a sprlng surrounding szud stern heshaft, for the purpose set forth.

tween the cap andvale, a lever fulcrum ed JOHN KELLY. between lts ends on sand cap \vlth one end In presence 0fc engaglng the valve-stem, a flexlhle strap se- JOHN \VlLSON,

cured t0 the opposite end of the lever to de- RALPH A. SCHAEFER.