US1941139A - Lubricating device - Google Patents

Description

Dec. 26, 1933. J. L. CREVELING 1,941,139

LUBRICATING DEVICE Filed Sept. 17, 1931 2 Sheets-Sheet 2 A TTORNEY.

Patented Dec. 26, 1933 UNITED STATES PATENT OFFICE LUBRICATING DEVICE Application September 17, 1931 Serial No. 563,413

12 Claims.

This invention relates to lubrication devices and more particularly to a type of lubricating pump having a part formed by a container adapted to transport lubricant from the factory to the place at which the lubricant is to be used and to store the lubricant until it is needed.

One of the objects of my invention is to provide a pump formed partly by a container within which the lubricant may be inclosed at the factory, and within which the lubricant may be kept closed until it is pumped to the bearing or bearings to be lubricated.

Further objects will be apparent from a reading of the subjoined specification and claims and from a consideration of the accompanying drawmgs.

In order to explain the invention more clearly several embodiments thereof are shown in said drawings, in which:

Fig. 1 is a sectional view of a lubricant container constructed according to my invention;

Fig. 2 is a sectional view of the container of Fig. 1 shown associated with a gun or pump parts to form an operative gun or pump;

Fig. 3 is a bottom plan view of the container shown in Fig. 1;

Fig. 4 is a view in section of a different form of gun formed partly by a container;

Fig. 5 is a view in section of the lower end closure for the container shown in Fig. 4 as it appears before the upper part of the gun is attached to the container;

Fig. 6 is a view in elevation of a split nut forming a part of the gun shown in Fig. 4;

Fig. '7 is a view in section of a modified form of pump head to be associated with a container; and

Fig. 8-is a view in section of a pump head formed by stamping or drawing.

In general the container or cartridge shown in illustrating my invention comprises a substantially cylindrical member 2 formed with open ends 3 and 4 and adapted to be associated with a pump head 5 shown in Fig. 2. The upper end of the container 2 has the edge turned outwardly to form a flange 6 extending around the circumference and the lower end 4 has the edge turned inwardly to form a flange '7. The lower end is normally closed by an end closure or piston 8 and the upper end by a closure 9. The closure 8 is adapted, when the container has been attached to a gun to form a part of the gun, to serve as a piston therefor. It is substantially circular in shape, and has formed adjacent to its periphery or circumference, an upwardly extending flange 10 and a downwardly extending flange 11 formed by parallel folds of the closure itself, both arranged substantially perpendicular to the main body thereof. The outer fold extends both above and below the plane of the main body, and the inner fold 11 is connected to the outer fold 10 by a reverse bend 12. The inner fold 11 extends wholly below the plane of the main body and is connected to the main body of the piston by a perpendicular bend 13. In the center of the closure 8 there is formed an indentation 14 which may be square or of any other suitable shape except circular, into which indentation a non-circular split nut 15 (shown square) is adapted to be positioned. The closure 8, within the depression 14, is formed with a circular softened portion 16, (shown substantially in the center of the depression), which is adapted to be pushed out by a screw 17 attached to the pump head 5, the lower end of the screw being adapted to be inserted through the opening formed thereby. The screw 1'? is then threaded throughthe nut 15 and by further rotation of the screw, the nut 15 is drawn up into the depression and the closure 8 becomes firmly locked on the end of the screw. Thereafter continued rotation of the screw causes the closure 8 to move up within the container 2 and act as a follower for the lubricant or as a piston to force lubricant out of the gun to the fitting to be lubricated, the structure of the folds insuring a tight fit against the sides of the container. Thus the lubricant is never removed from the container'at any time until it is being forced into the fitting by the pump. The head 5 may be se-' cured to the upper part of the container by a tapered fit as shown, or by any other suitable means making a tight fit, such as a bayonet joint.

In the modification shown in Fig. 4, I provide a jacket 103 which is adapted to fit over the carton 102 and protect the relatively thin carton against the pressures exerted in the manual operation of the pump or gun. The lower ends of the jacket 103 are curved inwardly as shown to contact with the sides of the container 102. The

end closure 104 of the carton 102 is not integral with the sides of the carton and is adapted to serve as a piston for forcing the lubricant upwardly. The jacket or shell 103 has rotatably mounted in an axial bearing a threaded rod 105, adapted to be pushed downwardly through the lubricant in he container 102 and through an opening 106 (shown most clearly in Fig. 5) in the closure 104, the lower end of the rod 105 being adapted to knock out a stamped knockout disk or cap 107. Thereafter, a split nut 108, formed of two semi-circular portions 109 and 110 connected by a spring 111 is pushed up in a pocket formed in a flange 114 until the nut 108 contacts with the lower end of the rod 105. Rotation of the rod 105 draws the nut 108 up on the end of the rod 105 and thus secures the closure 104 to the end of the rod. It is to be noted that the split nut 109 is provided with lugs 112 and 113, adapted to fit in notches formed in the flange 114, which is secured to the lower end of the closure 104. The closure 104 may be formed with a peripheral groove and a string packing 115 inserted therein, if desired, and preferably a felt washer 116 is inserted between the closure 104 and the knockout disk 107.

His believed that the operation of this form of lubricating gun or pump will be clear from the above description. The container 102 filled with lubricant serves as a material part of the gun. The cap 103 is placed over the container 2b and the rod 105 is forced downwardly through the lubricant. The knockout portion or cap 107 is pushed out by the lower end of the rod 105, and the split nut 108 is inserted partly within the flange 114. Rotation of the handle 101 of the rod 105 causes the split nut 108 tobe drawn up and firmly locked in the opening, and further rotation causes the closure 104 to move upwardly and act as a piston for forcing lubricant out of the carton to a high pressure gun B. After the container 102 is emptied, a few reverse turns of the handle 101 causes the nut 108 to back out and the spring separates the parts 109 and 110, and the container may be removed and thrown away.

In Fig. 7 is illustrated a modified form of pump head by means of which lubricant may be resiliently forced from a factory container. Therein the rod 105a passes through a hole 115 formed in the cover 116. Said rod 1050. is provided with threads and has formed thereon or suitably secured thereto below said cover a stop member 117. It has secured to the upper end of handle 101a and has above the cover 116, but below the handle an inverted cap 118 against which the upper end of a spring 119 is adapted to bear. The lower end of the spring 119 bears against the top of the cover 116 and both the spring 119 and the cap 118 are contained in a well or flange 121 formed on top of the cap. As shown in Fig. 8 the head 103a including the skirt 121 and handle 122 may be formed by stamping or drawing, the handle being punched out.

In operating this form of pump, it is unnecessary for the operator to continuously rotate the handle 1010;. After the head has been secured to the container and the lower end of the rod 105a has been secured to the lower closure of the container (which thus forms a piston) in a manner similar to that previously described in connection with Figs. 4-6, inclusive, a few more turns of the handle compresses the lubricant in the container and then the spring 119. The spring 119, though of suflicient strength to deliver lubricant to the high pressure gun B is not strong enoughto force lubricant through it, and therefore the rod 103a passes down through the piston corresponding to the closure 104, compressing the spring. Operation of the high pressure gun B now forces lubricant out inasmuch as the spring 119 is effective to deliver lubricant until the parts return to the position shown in Fig. 7. The compression of the spring may then be repeated.

It is to be understood that the above described embodiments of the invention are for the purpose of illustration only and various changes may be made therein without departing from the spirit and scope of the invention.

I claim:

1. A lubricating device comprising a container having one end open, and having said end formed with an inturnecl flange, and a closure for said end comprising a piston having the portion adjacent to the periphery thereof bent to form a pair of folds with a flange formed by said folds, the flange of the folds telescoping into the inturned flange of the container.

2. In a lubrication device, a container, a 010- sure for one end of said container formed with an opening and having a flange surrounding said opening, a felt washer within said flange surrounding said opening, and a knockout disk positioned within said flange and contacting with said felt washer.

3. In a lubrication device, a container comprising a cylinder, an end closure for one end of said cylinder formed with an opening therethrough, an annular flange secured to said closure around said opening and extending outwardly from said closure, and a disk arranged to close said opening and secured outside of said closure only by friction with saidflange.

4. A device for use with a lubricant container and a lubricant pump, comprising a cap formed with an opening therein, a threaded rod inserted through said opening, a handle associated with said cap, and a protecting apron extending downward adjacent to said handle and adapted to protect one side of said container. and provide a firm portion by which .said device may be grasped and on which force may be exerted for operating said lubricant pump.

5. In a lubrication device, an original lubricant package comprising cylindrical container, a follower for said container comprising a circular disk having an opening formed therein, a rod for moving said follower having one end extending through said opening, a split nut on said rod for fastening said follower to said rod against movement in one direction with respect thereto, and means on the follower for detachably securing the same with respect to said nut.

6. In a lubrication device a container, a rod inserted in said container and formed with external threads, a closure for one end of said container having a cylindrical pocket formed therein, and a split nut inserted in said pocket and threaded onto said rod.

7. For use with a lubricant container having a piston associated therewith, pump parts comprising a head for the container formed with an opening, a rod formed with threads adapted to be screwed into the piston, and a spring bearing on said head and adapted to exert force against a portion of said rod.

8. In combination, a lubricant pump having a piston drive screw, a split nut on said screw, a cylindrical body having one end adapted for communication with said pump, and a piston slidably mounted in said cylindrical body forming a movable closure for the opposite end there-' of, said piston having -a non-circular depression formed in its outer and exposed 'end wall for receiving said nut, the central wall of said depression having an opening through which said drive screw may extend.

9. In combination, a lubricant pump including a piston drive screw, a split nut on said screw, a cylindrical body having one end adapted for communication with said pump, and a piston slidably mounted in said cylindrical body forming a movable closure for the opposite end thereof,'said piston having a non-circular depression formed in its outer and exposed end wall for receiving said split nut, the central wall of said depression having a frangible portion.

10. In combination, a supporting body including a manually driven member, a substantially cylindrical body adapted to be mounted upon said supporting body, and a piston slidably mounted in said cylindrical body and forming a movable closure for the opposite end thereof, said piston having an opening through which said manually driven member may extend, said piston being further formed with an irregular depression in its outer and exposed end wall about said opening for receiving said manually driven member.

11. In combination, a supporting body including a manually driven member, a'member engageable with said manually driven member, a substantially cylindrical body adapted to be mounted upon said supporting body, a piston slidably mounted in said cylindrical body forming a movable closure for the opposite end thereof, said piston having an opening therethrough through which said manually driven member may extend, and means providing a socket on the outer wall of said piston about said opening for receiving said member engageable with said manually driven member.

12. A replaceable lubricant container for use with a supporting body including a manually driven member, comprising, a substantially cylindrical body adapted to be mounted upon said supporting body, a piston slidably mounted in said cylindrical body forming a movable closure for the opposite end thereof, said piston, having an opening therethrough through which said manually driven member may extend, means providing a socket on the outer wall of said piston about said opening for receiving a member engageable with said manually driven member, and a plug adapted to be received in said socket normally to close said opening.

JOHN L. 'CREVELING.

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