US1454892A - Grease cup - Google Patents

Description

May 15, 1923.

1,454,892 R. HUNT ET AL GREASE CUP Filed March 12, 1921 2 Sheets-Sheet 1 may 15, 1%. 1,454,892

R. HUNT ET AL, GREASE 6UP Filed March 12, 1921 2 Sheets-Sheet. 2

gummtou 2? Hunt, L 19. f reelrwv Patented May 15, 1923.

UNHTED STATES ear-ear eeeien.

ROBERT HUNT AND LEWIS D. FREEMAN, OF PORTSMOUTH, VIRGINIA, ASSIGNORS, BY

MESNE ASSIGNMENTS, 'IO UNION METAL PRODUCTS COMPANY, OF CHICAGO, ILLI- NOIS, A CORPORATION OF DELAW'ARE.

GREASE CUP.

App1ication filed March 12, 1921. Serial No. 451,71

T 0 all whom it may concern:

Be it known that we, Ronnn'r. HUNT and LEWIS D. FREEMAN, citizens of the United States, residing at Portsmouth, in the county of Norfolk and State of Virginia, have invented certain new and useful Improvements in Grease Cups, of which the following is a specification.

This invention relates to grease cups and more especially to that type employed upon locomotive driving rods and in similar locations. Such cups as ordinarily constructed are open to the objection that the plugs or followers thereof are liable to work out due to the vibration to which are subjected, and become lost with the result that the bearing is liable to become overheated and delays are caused. It is therefore one of the primary objects of the present invention to provide means for preventing loss of the plug or follower of a grease cup of this type.

Another object of the invention is to provide means for the purpose stated above which will not in any way interfere with intentional adjustment of the plug so as to feed the grease from the cup to the bearing.

Another object of the invention is to provide in connection with the cup and its plug or follower, means adapted to automatically lock or bind the plug should it be slightly backwardly rotated through the vibration to which it is subjected and which means will likewise tend to maintain the plug in positions of adjustment.

In the accompanying drawings:

Figure 1 is a side elevation of the grease cup embodying the invention;

Figure 2 is a vertical diametric sectional view therethrough;

Figure 3 is a horizontal sectional view taken substantially on the line 3-3 of Figure 2 looking in the direction indicated by the arrows;

Figure 1 is a View similar to Figure 1 illustrating the application of the principles of the invention to another structure.

In the drawings, the cup is indicated in general by the numeral 1 and the plug or follower by the numeral 2. The cup 1 comprises a hollow substantially cylindrical body 3 which is to be fitted or welded or otherwise secured, as at 4, in a seat 5 provided for the reception of its lower end in the part which carries the bearing to be lubricated and which in Figure 2 is illustrated in thenature of a locomotive driving rod 6.

The body 3 of the cup 1 is interiorly threaded as indicated by the numeral 7, and adjustably fitted into the bore of the body is the lower portion of the plug 2,the plug being exteriorly threaded, as ,at 8, to fit the threads 7. of the said body 3. At'its upper end the plug may be of the rectangular form illustrated in the drawings and indicated by the numeral 9 to provide for the application of a wrench thereto, or it may beformed in its upper end with a rectangular-socket to adapt it for the application of a wrench of a different type. v

v.lt will be understood that, the cup being packed with grease, the grease may be fed to the hearing as required by rotatably adjusting the plug 2 from time to time.

Incarrying out the invention, in that form illustrated in Figures 1, 2 and 3, the grease cup 1 is provided at the upper end of its body 8 at one side with an abutment member 9 the upper face 10 of which is located a plane spaced above the plane of the upper end of the said body 3. The head 11 upstands from the outer end of the abutment member 9 and is provided at its upper end with an inwardly directed abutment member 12 which is located above and in spaced parallel relation to the member 9. A ring nut 13 is threaded onto the plug 2 and has its peripheral portionprojecting between the abutment members g and 12 as best illustrated in Figures 1 i and 2. It will now be evident thatif the nut 13 is threaded down on the plug 2 until its peripheralportion binds against the up perface .10 of the abutment member 9, the i engagement of the peripheral portion of the nut against this face will result in a slight canting of the nut so as to cause its threads to bind the threads 8 of the said plug 2. When it is desired to adjust the plug 2 and feed the same into the cup so as to compress and eject the grease contained therein, the

nut 13 is to be loosened and threaded in an upward direction upon the plug whereupon the plug may be adjusted in the manner stated. The nut may then be rotatably adjusted so as to bind either against the face 10 of the abutment member 9 or against the under face of the abutment member 12 and in either event its threads will bind the threads of the plug and the plug will be held ment member 12 and bind the plug so as to arrest its loosening movement. Therefore the plug is normally held in the position to which it is adjusted but should it become loosened and turned backwardly, this movement will be eventually stopped. and the plug will be locked.

In the embodiment of the invention shown in Figure 4-, the numeral 1 lindicates the ma chine part through which lubricant is to be fed through a. grease cup 15 which is of a type different from that shown in the other figures of the drawings and which is provided with 'a threaded neck 16 fitted into the said machine part A locking device 17 comprising spaced abutment members 18 and 19 is secured upon the machine part i l in juxtaposition t0 the threaded stem 15 of the grease cup 16 and a nut 20 is threaded onto the said stem 15 and has its peripheral portion projecting between the abutment members 18 and 19. Thus the presence of the nut 20 and its coaction with the abutment members 18 and 19 serves to prevent unthreading of the stem 16 of the grease cup "from the opening in the machine part 14 and its conse 'uent loss.

*laving thus described the invention, what is claimed as new is:

1 In a device of the class described, a relatively I fixed part, a member adj ustably threaded into the said lined part, inner and outer abutments lined with relation to the fixed part and relatively spaced and rigidly connected, and a locking element threaded on to the adjustable member and having its peripheral portion projecting between the said abutments, the said locking element being adjustable to bind against the inner abutment to lock the adjustable member in its positions of adjustment and being designed to bind against the outer abutment in the event of loosening of the parts where by to prevent complete disengagement of the adjustable member from the relatively fixed part.

2. In a device of the class described, a

abutment fixed with relation to the cup and having a face spaced beyond the end of the cup at one side of the bore of the cup, an abutment spaced from the first-mentioned abutment and iii-zed with. relation thereto, and a locking; nut threaded on to the plug: and having its peripheral portion projecting between the abut-merits whereby when the nut is adjusted in the direction of the cup it will be caused to bind against the face of the first-mentioned abutment and efiiect a binding action to hold the plug; in positions of adjustment, and, in the event of loosening of the parts, will bind against the OPpOS l fip face of the other abutment whereby to prevent complete separation of the plug "from the cup.

3. In a device of the class described, a grease cup, a plug threaded into the cup, a locking; nut threaded on to the plug, and spaced relatively rigid abutments integral with the cup and between which the pe ripheral portion of the locking nut projects, the distance between the opposing faces of said abutments-being somewhat greater than the thickness of the locking nut whereby to permit of loosening oithe nut for the pur- 'a 1- pose oi efliecting an ad ustment of the said plug without permitting complete separation of the plug: from the cup in the event oi accidental loosening of the plug or nut. I

l. In a device of the class described, a grease cup having a threaded bore opening through one end thereof, an abutment fixed with relation to the cup and'proj'ecting latorally therefrom and having an abutment face at one side oi the be of the cup spaced beyond the said end of the cup, an abutment spaced beyond the first-mentioned abutment and lined withrelation thereto and having an abutment face opposing the face of? the first-mentioned abutment, a plug adjustably threaded into the said bore of the cup, and a nut threaded on to the said plug and having its peripheral. portion projecting between the said faces of the abutments whereby to impinge against either abutment and be canted to prevent movement of the plug, the distance between the abutment faces being cmisiderably greater than the thickness of the peripheral portion'ot' the nut.

ln testimony wl'iereol we lath our signatures.

ROBERT HUNT. L.s. LEWIS D. FREEMAN. [as]

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