US96028A - Improved carriage-hot shell - Google Patents

Description

1. OCONNOR.

Carriage-Hub Shell.

Patented Oct. 19, 1869 ,aient (lattice,

JAMES OOONOR, 0]", JAUKHOX". ISHOURL Letters Patent No. 96,028, (Intell October 1i), i869.

IMPROVED CARRIAGE-HUB SHELL.

'lhe Edhedule referred to in these Letters Patenti and making part or the name.

ficient to enable others skilled in the art to which my invention appertains, to make and use the same, reference being had to the accompanying drawings, forining palt of this speoilication, and in whichgure 1 is a transverse section, on the line zz, lig. 2, an

Figure 2 is a. longitudinal central section.

My invention isnn. rmroved carriage-hub. consisting of' a. metallic shell.

This hub is designed to obviate the very proper objections raised to metallic hubs as hitherto constructed, owing to the difiioulty of truing the wheel when the axle-box is made solid therewith, or held to place b v set-screws.

The invention consists in the construction of parts, as hereinafter described and claimed.

My improvements will be fully understood by reference to the accompanying drawings, considered in connection with the following detailed description.

In the drawings- A A' is a shell, made of malleable iron, and cast with a. central annular series of partitions or projections, a, thrming recesses to receive the spokes.

The shell A As strengthened by inwardly-projecting flanges, e e, at the sides of the spokerecesses. These flanges also prevent the blocks B B' from being i'orced in too far. A A

The part A is made of larger diameter than the part A.

b b are raised rounded ridges or beads formed on the shell A A', near the extremities thereof, and extending entirely around. The object of' .these heads is to give the shell the appearance ofthe ordinary hub.

The surfaces c ll, outside the beads b b, can he plated to represent the bands usually applied to hubs, while the remainder of the exterior of the shell can be painted as desired.

B B are wooden blocks, pressed tightly into the shell A A', from the opposite ends, by'lever-power. These blocks have central openings, forming a socket, in which the aisle-box is set and wedged tightly, and true to the rim'or tread of the wheel.

The partitions a, which separate the spoke-recesses, al'e not lnade` tapering or wedge-shaped throughout their lengthjlflnt are of one thickness for about halt their length, and are thenlnade tapering. The ends of the spokes to fit the recesses between these partitions,

are, therefore, made of' a double-wedge shape. this construction, the inner ends ofthe spoke-recesses heilig open, better facilities are aflbrded f'or tightening the spokes, and a more finished appearance is given to the wheel, by the contact of the spokes ut 'the hub.

By making the inner ends of the spokes ot'tln.l i'orm described, they are not so liable to become loose as when made with a regular and single taper.

The construction of the shell with beads saves the expense of separate bands. The blocks pressed into the shell aliow the employment ofthe common axleboX, which can be wedged tightly therein, and trulyto the rirh or tread of thwwheel, so that the latter does not wa.hb le,or run ziggr. as it certainlypill when the axle-box is solid to'the metallic hub, or hel'd in place by set-screws. y,

By enciosing'the blocks in the metallic shell, the axle-bdx van be wedged more tightly than usual, without splitting the wood.

I .un aware that a metallic bandol' collar, cast with spout-recesses, has been fitted on to a wooden hub, to prevent the splitting of `theI same, as in the patent of' L. Dorman, datedMay 51, 1867; but this` I do not claim, as it forms no part of' inyinvention.

The patent of Harvey D. Haraden, dated May 19, 1868, shows a hub somewhat similar to Dormans, with this dilference, that in the former the wooden-portion of the hub is made of' two parts, connected by a central metallic snpporter,wl1le in thevlatter the wooden part of the hub is in one piece. Hara-dens construction will not stand, the strain on the wooden blocks being so great a to loosen and break them away. For this reason, and from the fact that his inventionforms no'part ofvn'iine, I disclaim it. Indeed, one of the obnjects of myinven/tion is to do away with the objections incident to hubs constructed like Haradens.

Neither do I claim making the inner ends ot' the spokes of the form described, as this is shown in F.

Nicholss patent, dated September 29, 1868; but having thus described my invention,

What I claim as new, and desire fo sec-nrc by Letters Patent, isv U As a new article of manufacture, a shell, A A', ot metal, formed with iianges e e, spoke-recesses, and the beads b b, when made substantially as herein shown and described. v

To the above I havel signed my name, this 31st day of May, 1869.

JAMES OOONNOR.

Witnesses z NATHAN C. Hnnnrsos, l

JAMns F. EDWARDS.

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