US600816A - Jesse warrington - Google Patents

Description

(No Model.)

J. WARRINGTON. BEARING FOR VERTICAL SHAFTS.

No. 600,816. l Patented Mar. 15,1898.

MM' A770 IVEY.

JESSE WARRINGTON, OFINDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO TI-IE NORDYKE do MARMON COMPANY, OF SAME PLACE.

BEARING FOR VERTICAL.. SHAFTS.

SPECIFICATION forming part of Letters Patent No. 600,816, dated March 15, 1898.

Application filed December 16, 1897. Serial No. 662,193. (No model.)

To all whom it may con/cern:

Be it known that I, J Essa WARRINGTON, a citizen of the United States, residing at In-l dianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvementsin Bearings for Vertical Shafts, of which the following is a specification.

The object of my present invention is to provide a suitable single bearing for vertical shafts of that class generally known as step-bearings, which may be easily adjusted to bear properly upon the shaft at all times and take up all looseness resultant from wear.

A bearing embodying my said invention will be first fully described, and the novel features thereof then pointed out in the claims.

Referring to the accompanying drawings,

which are made a part hereof and on which similar letters of reference indicate similar parts, Figure l is a top or plan view of a bearing embodying my said invention, the shaft carried thereby being shown in section and all parts carried by said shaftserving to cover or conceal, the bearing itself being removed; Fig. 2, a central vertical sectional View of the same as seen from the dotted line 2 2 in Fig. l, the bearing-cover and a form of pulley carried by the shaft being shown in addition to the parts shown in said Fig. l; Fig. 3, a detail horizontal sectional view as seen from the dotted line 3 3 in Fig. 2, and Fig. 4 a detail vertical sectional view as seen from the dotted line 4 l in Fig. 3.

' In said drawings the portions marked A represent the outer shell or main chamber of the bearing structure; B B and O, bearingplates within said chamber; D, an adjustingrod, whereby the adjustment of the bearingplates is effected, and E a shaft carried by said bearing.

The outer shell or casing A is substantially in the form of an upright cylinder and preferably has an enlargement on one side at A', (the form of which is best shown in Fig. 3,) although it might be made cylindrical by enlarging it somewhat. The form shown is preferred, however, as it is thus of less size and weight for the required capacity. This shell is suitably mounted on an appropriate foundation, and I have provided spider-like arms Awhich may extend out a considerable distance, and thus give a very firm and substantial bearing, besides y providing at the outer ends of said arms means for adjustment,

whereby the shaft may be always kept in an exactly vertical position. There are three of the bearingplates,and consequently this shell may be considered as divided into thirds, each third equipped to receive and support one 1of said plates. At suitable points in the interior on two of the threedivisions as thus considered are bearing-ribs a, the bearingfaces whereof are segments of circles of less radius than the shell itself, the form of these being best indicated in Fig. 3. Within the bottom I prefer to form an annular rim a to receive and support the bearing-plates. Centrally within this rim and Within a suitable depression in the interior surface of the shell I place a bearing-plate a2 of suitable metal to receive the end thrust of the shaft E and supVa port the weight of said shaft and its load.

Lug's c are formed in the interior of the shell to guide and hold to proper position the bearing-plate C, as is best shown in Fig. l.'

Of the three bearing-plates two, B E, are provided with suitable projections which fit against the concave surfaces of the ribs a, as best shown in Figs. 3 and 4. This peculiar formation and arrangement permits the bear-- ing-plates to adjust themselves circumferentially to bear properly against the shaft and insures that the contact between the bearingsurfaces shall always be uniform. These two bearing-plates have two bearing-points each, as shown, whereby they are maintained in fixed situation so far as their vertical arrangement is concerned.

The bearing-plateO, as shown in the drawings, is of a somewhat different exterior formation from the bearing-plates B and does not come in contact with the interior surface of the shell A, except at the lower end, where it rests on the annular rim a', and at points on the sides, Where it is guidingly held by the lugs c. It has a central transverseenlargement with which the end of the adj usting-rod Dy comes in contact, as will be presently described. The other bearing-plates being supported at or near the ends and this bearingplate being supported at or near its center,

proper contact of the said bearing-plates throughout their length with the shaft is secured. Truss-like strengthening-ribs r on the back of this bearing-plate keep it from springing, so that there shall be no binding of the parts for` lack of stiffness.

The adjusting-rod D is mounted in a suitable screw-threaded extension e, secured to the side of the shell A, and its inner end comes in contact with the bearing-plate C. As the bearing is intended to be continuously lled with oil, this adjusting-rod is shown as passing through a stuffing-box, by which any escape of oil is prevented. It is provided with a lock-nut d, by which it can be locked in adj usted position. Said nut also holds the gland g of the stuffing-box to the proper position to insure the desired compression of the stung material.

The shaft E is of a common form and is mounted in the bearings described. It is shown only for purposes of illustration. Only a fragment thereof is shown in Fig. 2, the upper end, which carries or connects with the mechanism to be driven, being broken away, as unnecessary to illustrate in this case, and the lower end being also broken out to show the interior of the bearing-plates. As shown in said figure, the bearing-plates are lined or babbitted at the ends only, thus leaving the central portion free from contact with the shaft. This is because that in a bearing of this length it is unnecessary that the contactsurface should be continuous. I have shown in Fig. 2 a pulley P, mounted on this shaft E, of a construction iu which the center of the pull of the driving-belt is below the upper end of the bearing, which is obviously desirable in a machine of this character where the shaft has no support at the upper end. In said figure also I show a cover-plate p, which I have provided, the upper surface of which is somewhat funnel or hopper like and which is intended to exclude the admission of any eX- traneous matter to the interior of the bearing structure shown and also to catch and convey into the bearing any oil which may drip from the machinery above.

Having thus fully described my said invention, what I claim as new, and desire to secure l by Letters Patent, is-

1. The combination, in a bearing for an upright shaft, of the outer shell, three bearingplates within said shell, two of which are supported thereby at or near the ends, and an adj usting-rod whereby the third is supported at or near its center.

2. The combination, in a bearing for an upright shaft, of an outer shell designed to contain three bearing-plates, ribs upon two interior sides of said shell at or near the upper and lower ends thereof and having concave surfaces of smaller radius than that of the shell itself, three bearing-plates positioned Within said shell, two of which have convex protuberances thereon adapted to fit the concave surfaces on said ribs, and an adjustingrod adapted to support the third plate at a point at or near its center.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 4th day of December, A. D. 1897.

JESSE WARRINGTON. [L. s]

Witnesses:

CHESTER BRADFORD, JAMES A. WALSH.

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