US605914A - Pinion-bracket for turn-tables - Google Patents

Description

(No M bdel.)

J. B. ROEMHELD. PINION BRACKET FOR TURN TABLES.

No. 605,914. Patented June 21,1898.

NITED STATES PATENT FFICE;

PlN'lON-BRACKET FOR TU RN-TABLES.

SPECIFICATION forming part of LettersPatent N 0. 605,914, dated June 21, 1898.

Application filed November '5, 1897. Serial No. 657,563. (No model) To all whom it may concern.-

Be it known that I, J ULES E. ROEMHELD, of Chicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Pinion-Brackets for Turn- Tables, of which the following is a specification.

This invention relates to pinion-brackets for turn-tables, and has for its object to produce a simple strong device of this character, having increased durability at a less cost as compared with similar devices in common use. Brackets of this description as ordinarily constructed are of a composite nature, being built up of separate parts connected by rivets or bolts, which under the strains of use tend to become loose, and as soon as they are sufficiently loosened to permit relative movement of the component parts of the bracket usefulness of the structure is impaired and quickly destroyed. Moreover, separate braces are required for the purpose of holding in proper position and alinement the free end of the bracket, which carries the bearing of the pinion-shaft, and in practice itis found that these braces cannot resist the strains placed upon them, and become either fractured or detached, thus leaving the bearing insufficiently supported against lateral strains. These disadvantages are obviated by the structure embodying the present invention, which to these ends consists in certain novel features which will be hereinafter described and then spe cifically pointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation of a portion of a turn-table, having my improvement applied thereto. Fig. 2 is a sectional view taken on the line 2 2 of Fig. 1, and Fig. 3 is a plan View of the bracket detached.

In the said drawings, in which I have shown my invention applied to the turn-table of a swing-bridge, represents the turn-table drum, carried by the rollers 12 on the fixed track or way 11, the drum being provided with the usual upper track or way 13, which rests on said rollers. A represents the rack, and 15 the pinion, mounted on the pinion-shaft 16. These parts are of course of any approved construction.

The pinion shaft 16 is mounted in two to which they are secured bybolts 25.

brackets, an upper and a lower one, to the latter of which my present invention more particularlyrelates. This bracket isv cast of steel in a single piece and comprises a webor body portion 17, which is V-shaped or of increasing width from its free end to its base, said web or body portion being preferably arranged in a position inclined to the horizontal with its free end lower than the base. Ribs or projections 18 radiate fromthe free end of the bracket, extending at varying angles to the face, and in practice I prefer to locate the two innermost ribs on the upper side of the web or body, the outermost ribs being located at the lateral edges of the web in the shape of flanges. The intermediate ribs are also located on the under side of the web. The number and location of the ribs may, however, be varied.

The free end of the bracket is provided with a bearing 19 for the pinion-shaft 16, the said bearing being preferably integral with the bracketand provided with the usual removable cap 20, although I may provide aseparate bearing, forming a suitable seat therefor in the free end of the bracket.

The base of the bracket is provided with a horizontal flange or portion 21, shaped to conform to the drum to which it is attached and secured thereto by means of vertical bolts 22,

which pass through the horizontal bottom flange 23 of the drum, and which may also pass through the track 13. Vertical lugs 24 extend upward from the flange 21 of the bracket, said lugs being arranged alternately with the apertures for the vertical bolts 22 and bearing against the outer face of the drum, This arrangement of the lugs permitsthe use of the vertical bolts, which would otherwise be impracticable.

The upper bracket may be of any suitable construction.

By reason of the construction described the bracket may be firmly secured to the drum of the turn-table and will effectually resist the strains to which it will be subjected in use. All bolts and rivets in the body of the bracket and separate braces being dispensed with the disadvantage attendant upon their structural weakness and lack of durability are obviated,

while the bracket is of much simpler construction and may be produced at a much lower cost.

I claim I 1. As a new article of manufacture, an integral turn-table pinion-bracket of cast-steel, comprising a downwardly-inclined web or body portion which is V-shaped or of increasing width from its free end, which carries the bearing of the pinion-shaft, to its base, which is provided with a horizontal flange whereby it may be secured to the turn-table, substantially as set forth.

2. As a new article of manufacture, an integral turn-table pinion-bracket of cast-steel, comprising a downwardly-inclined Web or body portion which is V-shaped or of increasing width from its free end, which carries the bearing of the pinion-shaft, to its base, which is provided with a horizontal flange adapted tures and intermediate vertical projections,

substantially as and for the purposes set forth.

J ULES E. ROEMI'IELD.

Witnesses:

GEO. E. WALno, IRVINE MILLER.

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