US1259474A

US1259474A - Lubricating device.

Info

Publication number: US1259474A
Application number: US8165216A
Authority: US
Inventors: David W Barr
Original assignee: FRICTION PROOF LUBRICANT Co
Current assignee: FRICTION PROOF LUBRICANT Co
Priority date: 1916-03-02
Filing date: 1916-03-02
Publication date: 1918-03-19
Anticipated expiration: 1935-03-19

Description

D. W. BARR. LUBRIGATING DEVICE. APPLICATION FILEDIMAR. 2. m

1,259 Patented Mar. 19, 1918.

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DAVID W. BARR, 0F WATEBLOO, IOWA, ASSIGNOR T0 FRICTION PROOF LUBRICANT COMPANY, OF DES MOINES, IOWA.

LUBRICATING DEVICE.

To all whom it may concern:

Be it known that 1, DAVID W. BARR, a citizen of the United States of America, and a resident of \Vaterloo, Blackhawk county, Iowa, have invented certain new and useful Improvements in Lubricating Devices, of which the following is a specification.

My invention relates to improvements in lubricating devices; particularly to that type such as is used manually and called grease-guns for forcing grease into bearings, and the object of my improvement is to supply for this purpose a device adapted to operate upon the hardened greas or lubricant in a container, by gradually expelling the contents, employing a movable part of the container as a propelling element.

This object I have accomplished by means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is a longitudinal central sectional view of one of my improved movable bottom containers, as" associated with the clamping and propelling parts cooperatively used therewith for expelling the contents thereof.

.Fig. 2 is an elevation, on a diminished scale, of a container'with a conical ejectortop mounted thereon, and propelling mechanism clamped thereon for pushing inwardly the movable bottom of the container.

Figs. 3 and 4 are respectively plan views of the upper and lower parts of the conical ejector top of the device.

Fig. 5 is a detail perspective view of related parts of said ejector-top and the fastening-means therefor.

Fig. 6 is a longitudinal section of said ejector-top and of a portion of the container upon which it is fitted, and Fig. 7 is a longitudinal section of the top of the container, including its removable cap,before the removal thereof.

Fig. 8 is an enlarged fragmentary view of abutting portions of the container and of its bottom closure.

Similar numerals of reference denote cor: responding parts throughout the several views.

An important feature of my improved grease-gun is the grease-container 1, which is ametal can having the inwardly-flanged top ring 2, in which the usual removable cap 6 is fitted for a closure. The bottom of the Specification of Letters Patent.

Application filed March 2, 1916. Serial No. 81,652.

can is composed of a metal cup 5 over which is fitted a like cup 4 made of fiber, or pressed paste-board. This bottom is pressed into place by means of suitable machinery, and the lower edge of the can afterward inverted or turned over at 3 to lock the bottom from downward displacement. and form a tight joint therewith. The can is filled with hardened or viscous grease 26.

The means employed to discharge the contents of the can is a circular push-head 7 resting in contact withthe under face of the can bottom 45 and centrally orificed to receive the rotatable diminished upper end 8 of a threaded shaft 11, the latter provided at or near its other end with a cross-piece or crank-handle 12, secured by a set-screw 13. Upon the shaft 11 is mounted a circular plate 9 to work thereon and being of larger diameter than the push-head f1, and standards 20 are mounted about thls plate 9 having threaded upper ends carrying the wing-nuts 22. The can 1, after its closure -6 has been removed, is placed upon the push-head and within the surrounding standards 20.

The numeral 16 denotes a conical hollow discharge-head having a widened base-ring 14 containing a downwardly-directed annular channel 21, in which is seated a rubber or elastic sealing ring or gasket 24, which seals the joint between the discharge-head and the ring 2 0n the can when brought together as shown in Fig. 6. In the upper end of the discharge-head 16 ismounted a communicating nozzle 17 provided with a re movable end-cap 18.

The expanded part 14 of the dischargehead 16 has ears 15 with inner vertical circular seats 23 open at one side tangentially to receive the upper ends of the standards 20. The wing-nuts 22 are used to clamp upon the ears, with their lower coned parts 25, as shown in Fig. 5 releasably locked in the inwardly coned hollows or sockets 19 of said ears 15, thus preventing escape of the standards from said ears.

The cap 18 of the nozzle 17 having been removed, the crank-handle 12 may be employed to rotate the shaft 11, causing the plate 9 to push the head 7 against the can bottom 45, carrying the latter upward whose upwardly cupped edge forms a piston to push the rease 26 out of the can and through the discharge-head 16 and spout or nozzle 17, the elastic outer layer or edge of the outer cup 5 serving as a packing to prevent exudation of grease from the bottom of the can, during the action of the device.

It will be seen that containers, such as that described, may be supplied in said form already filled, for consumers, and may be discarded when emptied. The bottom 45 of the can, when the can is emptied, cannot be be noticed that the cupped edges or flanges of said bottom are flared outwardly.- This outwardly flared part helps to prevent the pushing back of the bottom by ordinary means, since the obliquity of the edge makes it tilt when pushed down.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1; A device of the character described,

comprising a container having an open top and a movable bottom, a discharge-nozzle seated removably upon the open end of the container and having hook-shaped ears the cavity of each being reamed out conically at the upper end, a pusher-head smaller in diameter than the interior of the container placed against the container-bottom centrally, a clamping-plate placed against the lower edge of the container and having threaded standards fixed thereon and passed along the exterior of the container and through the cavities of said ears, by way of the side-openings of their cavities, said sideopenings all facing in one direction, thumbnuts on said standards with coned lower parts adapted to fit the conedupper parts of the cavities in said ears to lock the standards therein, said clamping-plate having a centrally threaded orifice and a threaded shaft mounted in said orifice rotatably and having its upper end rotatably connected to the center of said pusher-head.

2. In a de ice of the character described, a container having anopen top, and bottom closure mounted therein for longitudinal displacement therein toward said open end only, said closure having its circumferential edge crimped outwardly and downwardly conically toward the inner wall of the container, and the lower end of the container crimped inwardly to overlap the crimped part of the closure.

Signed at Waterloo, Iowa, thls 19th day of February, 1916.

DAVID W. BARR. Witnesses:

G. G. KENNEDY, PEARL STANTON.