US786357A - Lubricator. - Google Patents

Description

No. 786,357. PATENTED APR. 4, 1905.

J. HANSON.

LUBRIGATOR.

APPLICATION FILED 001 .24, 1904.

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Witnesses Inventor.

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PATENT OFFICE.

JOSEPH HANSON, OF INWOOD, IOWA.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent N 0. 786,357, dated April 4, 1905.

Application filed October 24.1904- Serial No. 229,731-

To all whmn it nmy concern..-

Be it known that I, JosErH HANsoN, a citizen of the United States, residing at Inwood, in the county of Lyon and State of Iowa, have invented a new and useful Lubricator, of which the following is a specification.

This invention relates to lubricators, and has for its object to provide an improved forcefeed lubricator, the feed mechanism of which is arranged for intermittent operation by some moving part of the machine to which the device is applied.

It is furthermore designed to provide for automatically tripping the feed mechanism when the lubricant has become exhausted, thereby to prevent damage by further advancement of the plunger which is employed to force the feed of the lubricant.

With these and other objects in View the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the ac companyingdrawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings, Figure 1 is a longitudinal sectional view of a force-feed lubricator embodying the features of the present invention. Fig. 2 is an end view with parts broken away to illustrate the mounting of the drive-shaft of the device. Fig. 3 is a detail view illustrating the ratchet device included in the feed mechanism.

Like characters of reference indicate corresponding parts in each and every figure of the drawings.

The present device includes a cylindrical body 1 to contain the lubricant and supported at opposite ends upon suitable standards 2 and 3. At the top of the front of the cylinder there is a filling-passage 4:, provided with a turning plug or stop-cock 5 and surmounted at its top by a funnel 6, whereby the lubricant may be conveniently introduced into the cylinder. The front head 7 of the cylinder is pierced by a nozzle 8, which is reduced at its outer end to form a coupling 9 for connection with a service-pipe to carry the lubricant from the lubricator to the different parts of the machine.

W'ithin the cylindrical body 1 there is a plunger comprising a tubular core 10, which has its forward end closed and working in the nozzle 8 as a guideway, the rear end of the core being open and threaded both internally and externally. The body 11 of the plunger is substantially cylindrical in shape and of less diameter than the. body 1, with its forward portion connected to the middle of the core 10 by an integral wall or web 12, which is projected beyond the body 1]. to form a rim or flange 13, the rear side of which is beveled, as at 14. A cylindrical gland 15 embraces the rear open side of the plunger and is provided at its rear end with an end wall or web 16,,having a central opening 17 to loosely lit the rear end of the core, there being suitable packing 18 surrounding the body of the plunger and braced between the flange 13 and the gland 15. In rear of the gland there is a nut 19, fitted to the externallythreaded portion of the core and bearing against the gland for the purpose of adjusting the same and taking up wear on the packing 18.

The rear end of the cylinder-body l is pierced by a rotatable stem 20, having its forward threaded portion 21 engaging theinteri- Orly-threaded portion of the core 10, while its rear threaded portion 22 receives a handwheel 23, there being a gear 24 carried by the stein and located between the hand-wheel 23 and the body of the lubricator.

A drive-shaft 25 is supported transversely across the rear end of the lubricator beneath the gear 24, with one end mounted in a flared bearing 26 and its opposite end mounted in a bearing 27, which is pivoted at its rear end, as at 28, upon the adjacent standard. Upon this drive-shaft is a worm 29, which meshes with the gear 24. One end of the shaft 25 is provided with a ratchet-wheel 30, which is operated by means of a pairof dogs 31, mounted upon a cross-head 32, which is carried by a vibrating lever 33, fulcrumed intermediate of its ends upon the ad acent end of the shaft 25. Laterally-directed perforate cars 34 and 35 are carried by the lever 33 at opposite sides of its fulcrum, and an endwisc-adjustable rod 36 extends through these perforate ears and has its upperend pivotally engaged with a connecting-rod 37, connected to some movable part of the machine to which the lubricator is applied, so as to impart a vibrating movement to the lever 33. A stop-collar 38 embraces the rod 36 above the upper car 34 and is provided with a set-screw 39 for engagement with the rod, whereby the latter may be adjustabl y elevated to vary the throw of the lever. \Vhen the lever 33 is in motion, the shaft 25 and the worm 29 are intermittently rotated, thereby intermittently rotating the gear 24 and the stem 21, which latter operates to move the plunger forward and force the lubricant outward through the nozzle 8.

The front end of the cylinder 1 is pierced by an endwise-shiftable trip-pin 40, which works through a stuffing-box 41 and has its rear end in the forward path of the plunger for contact therewith. In front of the trippin there is a lever 42, fulcrumed upon a bracket 43, carried by the cylinder, with its opposite end pivotally connected to a rod 44, working beneath the cylinder through guides 45 and 46, carried by the standards 2 and 3. Upon the rear end of the rod 44 is a platespring 47, which bears against the under side of the bearing 27 to maintain the worm 29 in engagement with the gear 24. \Vhen the plunger engages the trip-pin 40 and forces the same forwardly into engagement with the lever 42, the rear end of the rod 44 will be dfawn from beneath the pivotal bearing 27, whereby the bearing will drop and withdraw the worm 29 from the gear 24, thus stopping the forward feed of the plunger.

After the lubricant has become exhausted the hand-wheel 23 is manipulated to withdraw the plunger into the back of the cylindrical body, and the body is recharged by pouring the lubricant into the funnel 6, and then the bearing 27 is reset and the device is in condition for operation.

Having fully described the invention, what is claimed is-- 1. In a force-feed lubricator, the combination of a body, a plunger working therein, a drive-shaft, gearing between the shaft and the plunger, a pivotal bearing for one end of the shaft, a movable member supporting the pivotal bearing and capable of being withdrawn therefrom to permit dropping of the bearing and the shaft, a movable trip in the path of the plunger, and means actuated by the trip to withdraw the bearing supporting member from the bearing.

2. In a force-feed lubricator, the combination of a body, a plunger working therein, means for actuating the plunger including a drive-shaft, a movable bearing for the shaft, a movable trip member located in the path of the plunger, a lever located in the path of the trip member, and a rod connected to the lever and having a portion lying beneath and supporting the movable bearing and capable of being withdrawn therefrom under the action of the lever to drop the bearing.

3. In a lubricator,the combination of a body, a plunger working therein and having an internally and externally threaded tubular core projected therefrom, a gland telescoping upon the plunger, packing between the gland and the plunger, a nut engaging the externallythreaded portion of the core for the adjustment of the gland, and a feed-screw piercing the body and engaging the internally-threaded portion of the core.

4. In a lubricator. the combination of abod y having a discharge-nozzle at its forward end, a plunger working in the body and provided with a tubular core having its forward end closed and working in the nozzle as a guide, the rear end of the core being open and threaded internally, a rotatable stem piercing the rear end of the body and having a threaded portion engaging the threaded interior of the core, a gear upon the outer end of the stem, a driveshaft, a gear carried by the shaft and meshing with the gear upon the stem, a pivotal bearing for one end of the shaft, a slidable member engaging the body to maintain the gears meshed and capable of being withdrawn from the bearing to drop the shaft, an endwise-movable trip-pin piercing the front of the body in the path of the plunger, and a lever located in the path of the outer end of the trip-pin and connected to the shiftable member to withdraw the same from the bearing.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

JOSEPH HANSON.

IV itn esses:

LOUIS ANDERSON, E. RENsHAw.

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