US478687A

US478687A - Norton d

Info

Publication number: US478687A
Authority: US
Publication date: 1892-07-12
Anticipated expiration: 1909-07-12

Description

(No Model.)

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UNITED STATES PATENT OFFICE.

NORTON D. CHAPMAN, OE TOLEDO, OHIO, AssIGNOR OE ONE-HALE To ALPHEUs CHAPMAN, OE sAME PLAOE.

CARR|AGECOUPLING- SPECIFICATION forming part of Letters Patent No. 478,687, dated July 12, 1892.

Application filed April 6, 1891.

To all whom, t may concern:

Be it known that I, NORTON D. CHAPMAN, of Toledo, county of Lucas, and State of Ohio, have invented certain newand use ful Improvements in Carriage-Couplings; and I dohereby declare that the following is a full, clear, and exact description of the invention, Which will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the figures of reference marked thereon, which form part of this specification.

My invention relates to a carriage-coupling, and has for its object to provide a coupling for the head-block, axle, and reach-iron that shall be positivein assembling the parts, f reefrom noise and rattling, and that shall present a large wearing-surface where the parts contact.

A further object is to provide a coupling in which bushings of hard metal may be used.

With these objects in view the invention consists in the parts and combination of parts hereinafter described, and pointed out in the claim.

In the drawings, Figure l is a perspective view of a head-block, axle, and reach assembled by means ot` my improved coupling. Fig. 2 is a longitudinal vertical elevation of the same, and Fig. 3 is a like View in section showing the bearings bushed with hard metal.

l designates the axle, 2 the head-block, 3 the reach, 4 the brace from the coupling to the reach, and 5 the fifth-wheel, these parts being held assembled by means of my improved coupling, Which consists of a clip 6, having a circular top portion 7, which projects upwardly and enters a circular cavity 8, formed in a cross-bar 9, secured to the under side of the head-block and held in place by bolts l0, which secure the upper section of the fifth-Wheel to the head-block, and also bya bolt ll,passed through the center ofthe head-block and axle. Plate 9 may, if desired, be of less length than that shown and be held to the head-block by nails or bolts driven or secured in the head-block, as the bolt Il serves to hold the same in position.

l2 designates the clip-plate, formed with a circular cavity 13, into which a circular boss 14, formed on the brace 4, enters, the plate and boss being perforated to receive bolt 1l,

Serial No. 387,794. (No model.)

which passes entirely through the same,the bolt being provided with a nut l5, which when screwed firmly against the under side of brace 4 holds in the same in place, although it will be understood that while the weight upon the head-block holds plate 9 upon the projection 7 with suficient force to prevent disengagement should the bolt ll become broken or displaced.` The brace 4 is also held by its fastening with the reach to cause the boss 14 to be normally in engagement with the clipplate, so that there is always anabsolute guarantee of safety in the coupling.

In the use of the coupling herein described there is a large bearing-surface at the pivots, and noise or rattling is avoided.

In Fig. 3 I have shown the annular chamber 7 and the boss 14 supplied with a bushing 16, of brass or analogous hard metal, this bushing being desirable in light couplings to prevent wear at the point of contact with the bolt ll.

It will be seen that I have provided acoupling of small expense,having a large bearingsurface at points of Wear, and by the telescopic arrangement avoiding jar or rattling of the parts, with absolute safety against disen gagement ot" the parts.

I wish it understood that I may transpose the parts-that is, form the annular chamber in the clip and the projection upon the plate 9 or form the clipplate with a bearing and the brace with an annular recess-Without departing from the spirit of my invention.

- Vhat I claim is- In a carriage-coupling, a head-block plate formed With an annularrecess, a clip having a recessed circular boss engaging the said recess, a clip-plate secured to the cli-p and having an annular recess, a brace having a recessed boss engaging the latter recess, and bushings located in the recesses of the two bosses, in combination with a king-bolt for assembling the several parts of the coupling.

In testimony that I claim the foregoing as my own I aiiix my signature in presence ot' two witnesses.

NORTON D. CHAPMAN.

Witnesses:

WILLIAM WEBSTER, CARROLL J. WEBSTER.