US1345843A - Oiler for loose pulleys - Google Patents

Description

J- J. FORTIEH AND J. K- SHERWOOD- OILER FOR LOOSE PULLEYS- APPLICATION FILED MAY 2, 1919.

1,345,843. Patented July 6, 1920;

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JOHN JAMES FORTIER AND JOHN K. SHERWOOD; OF GRAND RAPIDS, MICHIGAN; SAID SHERWOOD ASSIGNOR TO SAID FOBTIEB.

OILER FOB LOOSE PULLEYS.

Application filed May 2, 1919.

To all whom it may concern:

Be it known that we, JOHN JAMES Fon'rrnn and JOHN K. Sinniwooo, citizens of the United States of America, residing at Grand Rapids, in the county of Kent and State of lrlichigan, have invented certain new and useful Improvements in ()ilers for Loose Pulleys; and we do hereby declare the following to he a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention. relates to a construction adapted to be applied to pulleys, wheels or the like which run more or less of the time loosely on shafts. It is an object and purpose of the present invention to provide a container for a quantity of lubricant which may be attached to and move with a loose pulley, wheel or the like, and to provide novel and effective means in and associated with the lubricant container for effectively supplying the lubricant from the container to the shaft and between the shaft and the pulley or wheel. The invention consists of novel combinations and arrangements of parts as will appear from the following description, taken in connection with the accompanying drawing, in which,

Figure 'l is a vertical section through a pulley equipped with the oiler which is shown in elevation, and

Fi 2 is an enlarged vertical section through the oiler.

Like reference characters refer to like parts in the different views of the drawing.

in the construction of the oiler a substantially spherical hollow casting 1 is used, the same being adapted to contain a quantity of lubricant in liquid form, from which, at its lower side a projection 2, substantially square in cross section depends, terminating in a tapered threaded stem 3. A tube 4 passes upwardly through the stem 3, projection 2 and through the container reaching nearly to the top of the same as shown. The tube is held against movement by a set screw 5 which passes through a side of the projection 2 and bears against any suitable protective packing material 6 disposed between the end of the set screw and the tube to protect the same from indentations which might occur if the screw had direct contact with the tube.

A rod 7 is inserted in the lower end of tube Specification of Letters Patent.

Patented July 6, 1920.

Serial No. 294,304.

4 and lies loosely therein. its lower end normally projects a distance below the lower end of the stem 3 and at its upper end within the tube at, a coiled spring 8 of light tension is located, its upper end bearing against the lower side of a nut 9 threaded into the upper side of the container. This spring is under compression and forces rod 7 downwardly with a light pressure. An opening is made in a side of the container and is adapted to be covered by a cap 10 from which a threaded plug 11 projects, the opening being threaded to receive the plug. 'T he cap 10 has a wing extension for use in turning the same to wholly or partly remove the plug. An opening 12 is formed lengthwise of the plug from its inner end for a distance and then turned laterally making an openin 13 in the side so that when the plug is partly unscrewed the opening is accessible for the insertion of liquid lubricant therethrough.

This oiler is adapted to be attached to a pulley 14: or like wheel structure having a hub 15 through which a shaft or spindle l6 loosely passes, the pulley turning thereon. A hole is tapped in the hub and the stem 3 threaded therein, it being apparent that the lower end of rod 7 rides on the shaft. As the pulley is turned, the liquid lubricant within the container 1 is thrown outwardly by centrifugal action so that as long as there is any lubricant in the container the open end of the tube l within the container has it carried thereto. on the shaft vibrates back and forth more or less, particularly if the shaft becomes dry to any extent and this movement of the rod has the effect of carrying a small amount of lubricant through the tube 4 to the shaft and thus lubricates the bearing surfaces between the shaft and pulley.

This oiler construction is of simple con, struction and in practice applied to loose pulleys as described acts to feed sufficient oil so that a well lubricated bearing is always present between the pulley and the shaft on which it turns, while an excess of oil cannot run from the container to the shaft and flood the same with consequent loss of lubricant. The oiler is automatic in action, economical in use of lubricant and entirely practical and efficient in all respects.

We claim:

1. A device of the character described The end of the rod 7 riding a a coiled spring within the tube at its upper end and disposed between the upper end of the rod andupper side of the container, and means for introducing a quantity of liquid lubricant into .the container, substantially as described,

2. A device of, the character described com arisin a hollow container havin a threaded stem projecting from the lower side thereof, a tube open at both ends passing through the stem and into the container, itsupper end terminating a short distance from the upper side of the container, means passing through the stem to hold the tube in place, a rod loosely mounted in the tube, its lower end normally extending a distance below the lower end of the stem and its upper end terminating short of the upper end of the tube, a coiled spring housed in the tube at the upper endof the rod and disposed between the rod and the upper side of the container, and a plug threaded into a side of the container whereby liquid lubricant may be passed into the container at said side, substantially as described.

3. A device of the character described comprising a hollow container provided with means at one side to attach it to the hub of a pulley or like rotating structure, said pulley being adapted to turn on a relatively fixed shaft or spindle, a tube open at both ends reaching from adjacent the opposite side of the container and within the same through said attaching means, a rod in the tube having one end adapted to bear against the shaft or spindle, means housed within the tube and bearing against the rod for forcing the rod. with light pressure against said shaft or spindle, and means at a side thereof, whereby the container rotates with the hub around the shaft, means to introduce a quantity of liquid lubricant into the container, a tube passing through the stem into the container and terminating a short distance from the outer side of the container, a rod loosely mounted in the tube, its inner end bearing against the shaft and its upper end terminating a distance short of the upper end of the tube, a spring housed in the tube between the outer end of the rod 7 and the outer side of the container, and a nut threaded through the outer side of the container against which the outer end of the spring bears,'said spring serving to hold the rod with light pressure against the shaft, substantially as described.

A device of the character described, comprising a container for liquid lubricant, means for attaching the same to a hub of a wheel or pulley so that the same moves with the wheel or pulley and the lubricant is thrown to the outer parts of the container by centrifugal action, a tube'leading from the outer portion of the container through said attaching means, and a spring and a rod loosely mounted in the tube, said rod passing beyond said attaching means and bearing with pressure exerted by the spring against the shaft on which the pulley is adapted to be loosely mounted, substantially as described.

6. A device of the character described, comprising a container for liquid lubricant, an outlet tube therefor, a rod loosely mounted in the tube, and spring means tending to move the rod outwardly in the tube, substantially as described.

In testimony whereof we affix our signatures.

JOHN JAMES FORTIER. JOHN K. SHERl/VOOD.

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