US2429327A

US2429327A - Journal bearing extractor

Info

Publication number: US2429327A
Application number: US599997A
Authority: US
Inventors: Elmer P Morgan
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-06-18
Filing date: 1945-06-18
Publication date: 1947-10-21
Anticipated expiration: 1964-10-21

Description

O6; 21, 1947. p, MORGAN 2,429,327

JOURNAL BEARING EXTRACTOR Filed June 18, 1945 2 Sheets-Sheet 1 I I I0 27 25 cam-M Oct. 21, 1947. E. P. MORGAN 7 2,429,327

. JOURNAL BEARING EXTRACTOR Filed June 18, 1945 2 Sheets-Sheet 2 V 7 Fig. 5

' INVENTOI Q. Ba W Patented Oct. 21, 1947 UNETED ST T OFFICE The. present invention relates to a tool .for extracting the wedges and bearings from railway car journal boxes.

The principal object of the invention is to provide a hand tool for use'by the car repair mechanic in extracting the wedge and the journal bearing or brass? from the .box, after the truck frame has beenjacked up. By the use of my improved tool, the necessity for inserting the hands into the box is eliminated, thereby minimizing the chance of accident. Moreover, a distinct saving of time is effected.

Another object is to provide a tool for the described purpose which is easy to operate and simple and cheap to manufacture, and which can bemade in several different sizes and shapes to fit different standard journal boxes.

Other objects and advantages of the invention will be apparent from the following specification, which should be read with the understanding that changes, within the limits of the claims hereto appended, may be made in the form, construction and proportions of the tool without departing from'the spirit of the invention as defined in said claims.

Reference will be made to the accompanying drawings, in which Fig. 1 is a plan View of a typical embodiment of my improved tool showing it in operative re-.

lation to a journal bearing, a portion only of the bearing being shown.

Fig. 2 is a side elevation of the tool.

Fig. 3 is a vertical section of a journal box and bearing, illustrating the use of the tool in removing the wedge.

Figs. 4 and 5 are sectional views similar to Fig. 3 showing two successive stages in the removal of the bearing.

In the drawings, the reference numeral 6 designates generally my extracting tool, which is conveniently made of bar iron or steel in the general form of a yoke, having a handle portion 1 formed by bending the bar back upon itself at the middle of its length. At the base of the handle, the two parts of the bar are bent outwardly as at 8, and then bent again at 9 into parallel relation to form spaced legs l0, whose ends are upset to form upwardly directed hooks I I, all as shown in Fig. 1.

The two legs Ill are also bent in the vertical plane, as shown in Fig. 2, so that the hooked ends are ofiset vertically from the handle. The first or base portion l2 of each leg is bent upwardly at an angle from the horizontal bend 9, then is bent again at [3 to form a horizontal 3 Claims. (Cree- 267) central portion .I l,;then is bent upwardlyat l5 toform a vertical portion I 6, and finally isagain bent horizontally at ll. From the. bend I] to thelhook lil, the final portion i8 is straight and horizontal. 'The two legs 10 are symmetrical, andare spaced apart sufficiently to straddle the journal bearing .lllat its narrow partbetween itseside lugs1f20 :(Fig. 1)..

The use of my improved extractor is illustrated in Figs. 3, 4 and 5. A standard journal box assembly comprises a box 2! in which the journal 22 of the axle 23 is inclosed, a journal bearing or brass 24-, and a wedge 25 which lies between the brass 24 and the top of the journal box. The wedge has a hole 26 at its forward end, and the brass has the side lugs 20 with rearwardly facing shoulders.

When the journal box assembly is in service, the top of the box 2!, the wedge 25, and the brass 26 are in contact, and transmit the weight of the truck to the axle. When the assembly is to be taken apart for repair or replacement of the journal bearing, the truck frame is jacked up to take its weight off the bearing, as shown in Fig. 3. This separates the top of the box from the wedge 25, and permits the wedge to be pulled out. The brass 24 still rests upon the journal 22, and the wedge rests upon the brass, but is freed from the holding lug 27 which projects downwardly from the top of the box.

The first step in disassembling the journal is to insert one of the hooks ll of my tool in the hole 26 of the wedge, and pull said wedge out through the front of the box, as shown in Fig. 3. Only one leg Ill of the tool is used in this operation, the other leg being outside the box.

The next step, shown in Fig. 4, is to insert both legs of the tool into the box straddling the brass 24, and engage both hooks ll behind the lugs 20. The angle or bend l3 of the tool rests upon the bottom edge 28 of the front opening of the box.

Using the tool as a lever with the edge 28 of the a box as a fulcrum, the brass is raised until it clears the front collar 29 of the journal, whereupon it can be pulled forward by the tool until its forward end rests upon the collar 29.

The angle or bend ll of the tool then rests on the edge 28 of the box, as shown in Fig. 5, and the tool is again used as alever to pry the brass outwardly until it can be grasped with the hands outside the box. Throughout the entire process the mechanic need not insert his hands or fingers into the box, and hence is unlikely to sustain injury.

It is to be noted that the localized ownwardly concave bends l3 and I! in the legs Ill serve a useful purpose in providing seats to rest upon the forward edge 28 of the box to prevent slipping of the tool when used as a lever in lifting the brass 24. Said brass has considerable weight, and is difi'icult to lift, in its inaccessible position on top of the journal, without the use of a lever. The shape of the legs, particularly the vertical offset I6, also elevates the hooked ends H above the horizontal portion l4 and the bend I3, so that said hooks are in the best position to engage the brass when said bend I3 is resting upon the edge 28 of the box, as clearly illustrated in Fig. 4.

I claim:

1. A journal bearing extractor comprising a yoke-like tool having a handle at one end and a pair of laterally spaced symmetrical legs at the other end, each of said legs terminating in an up-turned hook and being formed with a loca1- ized downward facing concave bend between its hooked end and said handle, and each of said legs having a vertical off-set to elevate its hooked end above said bend.

2. A journal bearing extractor comprising a yoke-like tool formed from a single length of bar stock bent back upon itself midway between its ends to form a handle, the end portions of the bar being spaced apart to form legs positioned parallel with each other, each of said legs terminating in an up-turned hook, each of said legs being bent to form a localized downward facing concave portion, and each of said legs having an upward ofiset to elevate its hooked end above said concave portion.

3. A journal bearing extractor comprising a yoke-like tool having a. handle at one end and a pair of laterally spaced legs at the other end, each of said legs terminating in an upturned hook, said tool having a localized downward facing concave bend between said handle and and said hooked end, and said tool having an upward offset between said bend and said hooked end, whereby said hooked end is elevated above said handle end.

ELNIER P. MORGAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 977,245 Wiest Nov. 29, 1910 1,370,397 Axelton Mar. 1, 1921 1,892,824 Ziegler et a1. Jan. 3, 1933