US2705665A

US2705665A - Railway axle journal lubricator

Info

Publication number: US2705665A
Application number: US302054A
Authority: US
Inventors: James J Hennessy
Original assignee: HENNESSY LUBRICATOR Co IN
Current assignee: HENNESSY LUBRICATOR Co IN; HENNESSY LUBRICATOR COMPANY Inc
Priority date: 1952-08-01
Filing date: 1952-08-01
Publication date: 1955-04-05
Anticipated expiration: 1972-04-05

Description

April 5, 1955 J. J. HENNESSY RAILWAY AXLE JOURNAL LUBRICATOR 2 Sheets-Sheet 1 Original Filed Feb. 1, 1950 FIG 1/ 2 4- 14 /a lid Jiffy fare/773w w, /w @M A April 5, 1955 J. J. HENNESSY RAILWAY AXLE JOURNAL LUBRICATOR 2 Shets-Sheet 2 Original Filed Feb. 1, 1950 In yer/72W Q/ames v/ //e/me::y

United States Patent RAILWAY AXLE JOURNAL LUBRICATOR James J. Hennessy, Chambersburg, Pa., assignor to Hennessy Lubricator Company, Inc., Chambersburg, Pa., a corporation of Delaware Continuation of application Serial No. 141,647, February 1, 1950. This application August 1, 1952, Serial No. 302,054

Claims. (Cl. 308-84) This application is a continuation of my earlier application, filed February 1, 1950, Serial No. 141,647, now abandoned.

The invention relates to lubricators and railway axle box journals in which lubricant is fed from a reservoir in or formed by the bottom of the box to a journal by a mechanical pump actuated by the jarring of the box as it travels over railway joints or other track inequalities.

The invention consists primarily in a spring-supported weight and a collapsible pump body actuated by the relative vertical movements of the weight on its supporting s ring.

The main object of the invention is to produce an automatically operated pump of simple, inexpensive construction, which will be eifective to pump lubricant to the journal surface irrespective of the presence of waste or other packing which has a tendency to glaze and to separate from the surface of the journal to which it is applied.

In the accompanying drawings illustrating selected embodiments of the invention,

Figure 1 is a vertical longitudinal section through an A. A. R. (American Association of Railroads) axle journal box showing the journal bearing and wedge applied, the box being equipped with a lever type pump.

Figure 2 is a vertical transverse section taken approxi mately on the line 2-2 of Figure 1.

Figure 3 is a top view of the pump unit which is in serted between the journal and the bottom of the box.

Figure 4 corresponds to Figure 1, but illustrates another form of the invention.

Figure 5 corresponds to Figure 2, but illustrates another form of the invention.

Figure 6 is a detail taken on the horizontal section line 66 of Figure 5.

The box 1 shown in Figures 1, 2, and 3 is mounted upon the journal 2 of an axle 3 provided with the usual bearing 4 and wedge 5. A holding plate 6 has its inner end 7 welded at W to the inside inner end wall 8 of the box and has its outer end 9 welded at W to the upturned forward box wall 10. The plate may be welded to the box also at W" to prevent it from sagging. The left hand portion of the plate is split to form an elongated SlOt 6a.

A bracket 11, having an I section, is slidable on plate 6 to the inner end of slot 6a and journals a fulcrum pin 12 for mounting a lever consisting of an arm 13 which extends to the left of fulcrum 12 and comprises or carries a substantially heavy weight, there being an arm 14 extending to the right of fulcrum 12 and terminating in a forked end having terminals 15 extending downwardly at opposite sides of holding plate 6.

A pump is mounted upon the right hand end of lever arm 14 and includes a collapsible body 16 having a top plate 17, a bottom plate 18, and an intermediate partition plate 19. The bottom plate 18 has simple inlet flap valves 20 and the intermediate partition plate 19 has corresponding outlet flap valves 21, whereby, when the body is collapsed, fluid within the chamber 22 will be discharged first into chamber 23 and then through the opening in top plate 17 to an arcuate distributor pad 24, preferably formed of fibrous material through which the lubricant may flow to the journal. When the pump body is expanded, valves 21 are closed and valves 20 are opened to admit fluid to chamber 22.

Coil springs

43 and 44 normally hold chamber 18 extended, but the chamber may be collapsed, whenever the box is jolted,

2,705,665 Patented Apr. 5, 1955 by the inertia of weight 13. When the force of the jolt is expended, weight 13 will be returned by

springs

43 and 44 to the normal position shown in Figure 1.

Downwardly inclined terminals 15a on the forked terminals 15 of lever arm 14 form a guide for the lower end of the pump as it is moved into assembled position and an upstanding finger 25 on holding plate 6 forms a stop to limit the rearward movement of the pump body.

Distributor 24 is carried by springs 26 which thrust the distributor against the journal. The pump unit, the distributor and the pump-operating weight lever are shown formed separately to facilitate insertion in place under the journal, but the pump could be assembled with either the distributor or pump if desired and where the value of fewer separate parts is considered greater than easier insertion and removal of the parts.

Figures 4, 5, and 6 illustrate another form of the invention in which the journal box 30, journal 31, bearing 32, wedge 33, pump body 34, distributor and distributor supporting springs 36 correspond to similar parts shown in Figures 13, but the pump operating weight 37 is supported directly by a coil spring 38 seated on the bottom of the box and also forming a support for the bottom of the pump body. The spring is positioned by a recess in the holding plate 39 which is welded to the box at X and X. The upper end of the pump body is stitched to distributor 35, the latter being provided with an opening 42 leading from the upper portion of the pump body.

The spring has a cap 40 and a rod 41 extends horizontally across cap 40 and engages the bottom of the pump and supports the weight. Preferably the weight is U-shaped (see Figure 6) with its spaced legs receiving the pump body between them so that the entire device occupies a comparatively small space longitudinally and transversely of the box.

The device operates similarly to the arrangement shown in Figures l-3. Whenever the box is jolted the inertia of weight 37 compresses spring 38 causing the pump body to expand, drawing lubricant through inlet valves in its lower end, and as spring 38 expands and weight 37 rises to its normal position, :as shown in Figures 4 and 5, the upper chamber of the pump is compressed and lubricant is discharged to the distributor.

Both forms of the device are simple and effective for the intended purpose. The details may be varied other than as described without departing from the spirit of the invention and the exclusive use of those modifications coming within the scope of the claims is contemplated.

What is claimed is:

1. In a railway axle journal lubricator, an elongated support plate, a pump mounted thereon and including a collapsible chamber, yielding means supported from said plate resisting collapsing of the chamber, a weight supported from said plate and normally maintained at a predetermined level by said yielding means and movable by its inertia and momentum from said position, relative to said pump chamber, to collapse said pump chamber, said pump chamber having an inlet valve opened by the expansion of said chamber and closed by the contraction of said chamber, and an outlet valve closed by the expansion of said chamber and opened by the contraction of said chamber, a lubricant feed member leading from said outlet valve and arranged to discharge to the downwardly facing surface of an axle journal above said chamber, said plate, chamber, yielding means, weight and feed member comprising a self-contained unit insertible between a journal and the bottom of a box mounted thereon.

2. In a lubricator as described in claim 1, in which the pump is upright and generally cylindrical, and the operating weight at least partially surrounds the pump.

\ 3. A railway axle journal lubricator pump unit comprising an elongated support plate, a lever having a fulcrum thereon, an arm of said lever extending substantially horizontally in one direction from said fulcrum alongside said plate and carrying a weight, the lever having an arm extending substantially horizontally in the opposite direction from said fulcrum alongside said plate, a yielding device associated with. said latter-mentioned arm and adapted to counterbalance said weight, and a pump actuated by oscillatory movements of said lever about said fulcrum.

4. A railway axle journal lubricator pump comprising a support member, a lever having a fulcrum thereon, an arm of said lever extending substantially horizontally in one direction from said fulcrum and carrying a weight, the lever having an arm extending substantially horizontally in the opposite direction from said fulcrum, a yielding device supported from said member and associated with said later-mentioned arm and adapted to counterbalance said weight, a pump actuated by oscillatory movements of said lever about said fulcrum and comprising a collapsible body normally held expanded by said yielding device. and provided with inlet and outlet check valves at its respective ends, there being a lubricant distributor associated with its outlet check valve.

5. In combination, a railway axle journal box, an elongated support plate mounted on the inside bottom wall of the box, a lever fulcrumed on said plate with an arm extending along the bottom Jofthe box to beneath the center of the box, a collapsible pump body mounted on the outer end of said arm, a lubricant distributor carried by the upper end of said pump body, an operating arm extending in the opposite direction from said fulcrum and carrying a weight, and a spring tending to hold the pump body normally in expanded position against the action of said weight.

6. In combination, a railway axle journal, a box mounted thereon, a holding plate extending just above the bottom wall of the box from near the rear wall of the box to near the front opening in the box and secured at its ends to the adjacent portions of the box, said plate having a slot extending from near its forward end to a point beneath the journal, a bracket slidable on said plate with a depending portion received in said slot and extending beneath the plate at the sides of said slot, a lever fulcrumed on said bracket and having a carrying arm extending from its fulcrum towards the rear of the box just above said plate and having a weight arm extending from said fulcrum upwardly and forwardly towards the box opening beneath the journal collar, a pump body of flexible material with its lower end mounted on the inner end of said carrying arm and its upper end adjacent the lower surface of the journal, a spring holding said pump body expanded, said pump body being collapsible, at least in part, by the downward movement of said weight, there being inlet and outlet check valves in said pump body actuated by the expansion and collapsing, respectively, of the pump body to admit fluid to the lower end of the pump body and to discharge fluid from the upper end of the body to the journal.

7. In combination, a railway axle journal, an axle 5 box carried thereby, a pump body between the bottom of the box and said journal and including a collapsible chamber with inlet and outlet valves at its lower and upper ends respectively, means tending to expand said chamber vertically, a spring yieldingly supporting said pump body from the bottom of the box, and a weight supported above the bottom of the box by said spring, and operating to collapse said pump body as the weight moves downwardly and to permit the pump body to expand as the weight moves upwardly.

8. In combination, a railwayaxle journal having an opening at its forward end, an axle box carried thereby, a lubricant pump device insertible into said box, and removable therefrom, through said opening and comprising a support member resting upon the bottom of the box, a pump body comprising a collapsible chamber with flexible walls, and having an inlet valve, opening as the chamber is expanded and closed as the chamber is collapsed, and having an outlet valve closing as the chamber is expanded and opening as the chamber is collapsed, means yieldingly holding said chamber against collapsing, and a weight associated with said means to overcome the latter and partially collapse the chamber when the Weight is jarred, said chamber, means and weight being carried by said support member.

9 A railway axle journal lubricator pump unit comprising a support for application to the bottom wall of a journal box, a lever having a fulcrum, with a horizontal axis, on said support, and having an arm extending substantially horizontally in one direction from said fulcrum and carrying an inertia weight, and having an arm extending horizontally in the opposite direction from said fulcrum and carrying a pump chamber with flexible walls and collapsible vertically with its lower end provided with an inlet valve and with its upper end provided with an outlet valve and a journal-engageable part, and yielding means thrusting said chamber ends apart.

A railway axle'journal lubricator pump unit comprising a support for application to the bottom wall of a journal box, an upright coil spring associated with said References Cited in the file of this patent UNITED STATES PATENTS 51,474 Pease Dec. 12, 1866 228,657 Luders June 8, 1880 563,270 Godley July 7, 1896 1,739,944 Braselton Dec. 17, 1929