US281429A - Two-wheeled vehicle - Google Patents

Description

M.BARNHS. TWO WHEELED VEHICLE.

(No Model.)

Patented J "17,1883;

- Inventor UNITED STATES "PATENT OF ICE.

. MONROE BARNES, on BLOOMINGTON, ILLINOIS.

,TWO-WHEELED VEHICLE.

SPEGIFICATIONfOrming part of Letters Patent No. 281,429, dated July 17, 1883.

Application filed March 1, 1883. (No model.)

To all whom, it may concern:

Be it known that I, MONROE BARNES, of Bloomington, in the county of McLean and State of Illinois, have invented certain Improvements in Driving-0arts, of which the following is a specification.

My invention relates to that class of twowheeled driving-carts wherein the body or seat is hinged to the frame at its forward end and sustained at its rear end by means of a transverse spring.

My improvement consists, mainly, in suspending the ends of the transverse spring by means of pendent links adapted to swing forward and backward, so that as the seat rises and falls and swings around the forward hinge as a center, the links permit the ends of the spring to swing therewith without the application of torsional strain thereto. In this manner 'I avoid the lateral and twisting strains otherwise applied to the spring, lessen the danger of its breakage, and secure a far easier motion of the parts.

Referring to the accompanying drawings, Figure l is a bottom plan of my improved cart; Fig. 2, aside elevation of the same; Fig. 3, a perspective View of one end of the spring and its suspending devices. Fig. 4 is a cross-section on the line 3 y, Fig. 1, looking forward.

Referring to the drawings,A represents the axle, mounted at its ends in wheels B. To opposite ends of the axle I secure rigidly the two shafts or thills 0, connected by rigid cross-bar D, and strengthened by means of brace-rods E, extending forward from their rear ends.

F represents the seat and body connected at the forward end by its rigid arms a to the plate I) on the under side of the cross-bar by means of horizontal pivots c. As shown, the connection is such as to allow the rear end of the body to swing vertically aroundthe pivots c as centers, but preventing it from swinging in any other direction. a series of holes to receive the pivotpins, thus permitting the body to be adjusted forward and backward to adapt the cart for carrying different weights. It is manifest that instead of having the series-of holes in the arms a the same result may be obtained by forming a series of pivot-holes in the plates 12. The rear end of the body is carried by an arched or semi-elliptical spring, H, secured rigidly across The arms a are provided with its under side, and suspended at its two ends by pendent links or arms I, attached to the thills. The peculiar arrangement of these links forms the essential feature of my invention. As shown in the several figures, each link is attached at its upper end by means of an eyebolt, d, which permits the lower end of the link to swing forward and backward, or, in other words, in the line of travel. lower end each link is connected by a pivot, e, lying transversely of the cart, to the upper end of the two plates f, the lower ends of which are connected by a longitudinal pivot, g, to the end of the spring which is seated thereon. It will be observed that the pivots g and 6 lie at right angles to each other, and that, in connection with the link swinging in the direction stated, they permit the ends of the spring to swing downward and forward with the body without being twisted.

Attempts have been made to connect the spring with the thills by means of double shackles, which could not swing forward and backward. The result was that the spring was twisted, strained, and clamped, its action rendered stiff and harsh, and the breakage and displacement of its'leaves endangered, all of which evils are avoided by my construction. In place of the two plates f, a coupling made in a single piece may be employed.

Good results may be secured when the pivots 0 are omitted and the lower end of the link I forked and connected directly to the ends of the pivots 9; but the construction shown is preferred.

While the drawings represent the spring as located in advance of the axle, it is to be understood that the thills or arms thereon may be extended beyond the axle to suspend the links and spring inrear of the same.

The present invention is restricted to those matters and things which are hereinafter claimed, and as to all matters which may be described or shown, but which are not claimed, the right is reserved to make the same the subject of a separate patent.

Regarding the operation of my improved structure, two essential points are to be noted: first, that the spring-sustaining links adapted to swing forward and backward, or, in other words, in the line in which the vehicle travels, admit of the ends of the spring swinging down! At the ward and forward with the body as the latter is depressed without the application of a torsional or twisting strain to the spring; and, second, that the combination of the forwardlyswinging links and their jointed connection with the spring admit of the body being adjusted forward and backward to maintain a proper balance of the vehicle when used for carrying different weights, without effecting IO the torsional strain of the spring, which would otherwise occur as a result of such adjustment. Having thus described my invention, what I claim is 1. The combination of the wheeled frame, 11118 body connected at its forward ends to said frame by transverse hinges, the arched spring secured transversely to and beneath the body, and the pendent links suspending the ends of the spring from the frame, and jointed, as described, to swing forward and backward with the ends of the spring, whereby a torsional strain of the spring is prevented.

2. The wheeled main frame, in combination with the body F, the hinges uniting the forward end of the body and the frame, the links I, suspended from the frame and adapted to swing forward and backward, and the plates f, connected to the spring and the links, re spectively, by pivots g and a, lying at right angles to each other.

3. The combination of the wheeled frame, the body, the connecting-hinge adapted, as described, to permit the forward and backward adjustment of the body with respect to the frame, the arched spring H, secured transversely to the body, and the links I, jointed to the spring and the body and adapted to swing forward and backward in the line of travel, whereby the longitudinal adjustment of the body is prevented from twisting the spring.

MONROE BARNES.

Witnesses:

JOHN T. ARMs, CHARLES M. McCooK.

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