US566128A

US566128A - Oil-guard for drop-hammers

Info

Publication number: US566128A
Authority: US
Publication date: 1896-08-18
Anticipated expiration: 1913-08-18

Description

(No Model.)

C. E. BILLINGS.

OIL GUARD FOR DROP HAMMBRS.

Y 10.566,128. PatentedAugJalaQa ummm (5,.. 2% wma/@ @ha EB g UNITED STATES PATENT OEEIcE.

CHARLES E. BILLINGS, OF HARTFORD, CONNECTICUT.

OIL-GUARD FOR DROP-HAMMERS.

SPECIFICATION forming part of Letters Patent No. 566,128, dated August 18, 1896.

' Application nea May 28,1896. serial No. 593,408. cto model.)

To all whom it may concern.-

Be it known that I, CHARLES E. BILLINGs, a citizen of the United States, residing in Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Oil-Guards for Drop-Hammers, of which the following is a specification. 4

This invention relates to drop-hammers, and more particularly to oil-guards therefor; andthe object of the invention is to provide improved means whereby oil from the journal-bearings of the drop-hammer can be prevented from flowing on the lifting-board, and which means will be simple in construction and effective in operation.

In the drawings accompanying and forming part of this specification, Figure l is a front view of the upper portion of a drophammer with the improved oil-guard in po# sition thereon. Fig. 2 is a crossesectional view, partly in elevation, taken in line ct ct, Fig. l. Fig. 3 is a View of one of the liftingrolls detached and partly in section and showing the improved oil-guard in position relatively thereto, one of said guards being shown in section.

Similar characters designate like parts in all the figures of the drawings.

In drop-hammers as ordinarily constructed it has been found, in practice, that lubricant from the journal-bearings works its way by means of the lifting-roll shafts to the periphery of said rolls, and from thence to the board forming the usual means for elevating the hammer, whereby within a comparatively short time such board becomes extremely slippery, so that the rolls permit the same to slip therethrough and'only bite thereon intermittingly, thereby soon rendering it unfit for use and thus necessitating constant renewal thereof, which is not only expensive in the matter of stock, but also in the time and labor required to replace the board. In order, therefore, to obviate this serious disadvantage, improved means is provided whereby oil from the j ournal-bearings is absolutely prevented from reaching the lifting-board.

In the preferred form thereof herein shown and described the improved oil-guard comprises a suitable disk disposed on the end of the hub of each of the respective lifting-rolls 5; and in the present construction the disks are centrally bored to lit the said hub and preferably have two annular ianges 7 and 8, of differential diameters, and are provided with sharp-edged peripherieS, and. an annular groove 9 being located between said iianges. Each disk is provided with a transverse aperture l0 for the reception of a pin 11, which extends into a hole in the hub of the lifting-roll, whereby the disks are held on the hub for rotation.

In assembling the oil-guards the flanges of the disk having the largestydiameter are disposed nearest the lifting-roll for the purpose hereinafter set forth. It will be understood of the rolls they may be secured in position adjacent to the ends of the rolls in any other suitable manner.

In the use of this improved oil-guard the oil from the journal-bearings finds its way by centrifugal force to the edge of the outer flanges 7 of the disks 6, where it either remains or is thrown off during the rotation of the lifting-rolls. In case, however, the oil should pass beyond such outer flanges it will be stopped by the inner anges, where it will likewise eitherremain or be thrown off, so that lubricant from the journal-bearings is absolutely prevented from reaching the peripheries of the lifting-rolls, and thereby the lifting board or strap.

It will be understood that instead of forming the oil-guard as a disk having a pair of lian ges thereon each disk may have any desired number of iianges and may be secured in position in any desired way, but the preferable construction is to provide each disk With two parallelly-extending ianges, whereby if the lubricant works its way from the outer Iiange the inner flange will form an effective means for preventing the same from reaching the lifting-board.

Having described my invention, I claim- 1. An oil-guard for shafts having a pair of parallel annular flanges of diiferential diameters and having an annular groove intermediate thereof.

2. In combination with a lifting-roll, of a drop-hammer, an oil-guard comprising a disk that instead of locating the disks on the hubs IOO disposed on eaeh end of the hub thereof, and flanges of differential diameters having sharp eaoh of said disks having a pair of annular peripheries and having` an annular groove in- 1o flanges of differential diameters. termediate thereof. 3. In combination With a lifting-roll, of a 5 drop-hammer, an oil-guard disposed thereon CHARLES E' BILLINGS' and Comprising` a pair of eentrallybored NVitnesses: disks, one Xedly secured at each end of said F. C. BLAND, lifting-roll, each of said disks havinga pair oi' B. B. WELLS.