US664445A - Closing-up device for axle-bearings. - Google Patents

Description

Nm 664,445. Patented nec. 25, |900.

- r. snTH. -V y lCLl'lSlNf-Ul EVICE FUR AXLE BEARINGS.

(Appummn med my 25. moo.)

` UNITED STATES PATENT OFFICE.

FRANCIS SRTH, OF DORTMUND, GERMANY.

CLOSING-UP DEVICE FOR AXLE-BEARINGS.

SPECIFICATION forming part of Letters Patent No. 664,445, dated December 25, 1900.

Application filed May 25, 1900.

To a/ZZ whom t may concern:

Be it known that I, FRANCIS SRTH, a subject of the German Emperor, and a resident of Dortmund, in the Province of Westphalia,

y German Empire, have invented a new and useful Closing-Up Device for Axle-Bearings, of which the following is an exact specilication.

By my present invention the running out of the oil from the bearing-box and especially the penetrating of dirt into it will be preven ted. For this purpose it is necessary that a device should be arranged which closes tightly, on the one hand, against the bearingbox and, on the other hand, against the axle.

In order to make my invention more clear, I refer to the accompanying drawings,in which similar letters denote similar parts throughout both views, and in which- Figure lis a longitudinal sect-ion of this arrangement. Fig. 2 isa side View of the sa1ne.

With reference to the drawings, I) is a softindia-rubber ring with an annular space between the rear and front portions, the latter of greater internal diameter than the former, the rear portion bearing against the swell h of the axle. a is a cast-iron ring, and c a leather or lead ring. The latter is, by means of rivets e, fastened to the walls of the box f. The india-rubber ring b is only on its back side tightly set on the axle, While its front b', which does not touch the axle, can be freely elongated in the horizontal direction. The ring a is connected to the india-rubber ring b and is freely surrounding the axle. It can be moved in horizontal direction and be pressed by means of the india-rubber ring b against Serial No. 17,956. (No model.)

the leather or lead ring c. By this kind of arrangement neither is the axle worn out by the device nor is the latter worn out by the axle.

The ring b has to fulfil three tasks: first, to prevent the oil from running out in the horizontal direction second, to press the ring a against the leather or lead ring c, so as to prevent the oil from running out in the vertical direction, and, third, to effect the rotation of the device with the axle.

The ring a is provided with a metal spring d for the purpose of preventing the ring b from getting injured by the oil; but the latter arrangement is not absolutely necessary.

Having thus fully described the nature of this invention, what I desire to secure by Letters Patent of the United States is In a closing-up device, the combination of an integral rubber ring having an annular space between its front and rear portions, the latter of greater internal diameter than the former, and the rear portion bearing tightly and the front loosely on the axle, a cast-iron ring connected to the rubber ring and arranged to be freely moved horizontally, another ring attached to the bearing-box, and a spring inserted within the cast-iron ring, substantially as set forth.

In Witness whereof I have hereunto set my hand in presence of two witnesses.

FRANCIS sETH.

Witnesses WM. EssENwIIIN, ALBERT LIEBER.

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