US225965A - Vehicle-spring - Google Patents

Description

0. M. BLYDENBURGH.

' Vehicle-Spring.

No. 225,965 7 Patented Mar. 30,1880.

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ll. PETERS, mUTHDGfiAPHEE WASHXNGTON. D, G.

elastic support CHARLES M. BLYDENBURGH,

FFICE.

OF RIVERHEAD, NEW YORK.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 225,965, dated March 30, 1880. Application filed January 26, 1880.

To an whom it may concern:

Be it known that 1, CHARLES M. BLYDEN- BURGH. a resident of Riverhead, in the county of Suffolk and State of New York, have invented certain new and useful Improvements in Wagon'Springs; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

The object of my invention is to provide an for the bed of a wagon, which may be cheaply made and readily interposed between the bed and the running-gear of ordinary farm wagons or other vehicles, and which shall subserve the purpose of the high elliptic springs in common use without their objectionable features.

It consists in a novel combination, with each other and with transverse strips or rests, of long elastic bars of wood or metal crossing each other near the center, to form an elastic frame, admitting of adjustment and adaptation for light or heavy loads.

In the accompanying drawings, Figure 1 is a perspective view, Fig. 2 a plan view, and Fig. 3 a side elevation, of my improved spring attachment.

A A are longitudinal bars or strips of tough elastic wood or of light spring metal, long enough to extend from end to end of the wagon. These strips are arranged in pairs, two of them being coupled together by a transverse strip or cross-piece, B, placed at about one-fourth of their length from one end thereof, so as to be held at a width apart about equal to that of the bed of the wagon with which they are to be used, and the second pair are coupled in like manner at such a distance apart as to pass easily between the first pair. The one pair of barsis then passed between the other, as shown in Fig. 1, so that the longitudinal bars oneaeh side shall cross each other centrally of their length, or nearly so, with the free ends of each pair resting upon and supported by the transverse strip coupling in Fig. 3.

The upper free ends of the bars may be secured either directly rests 0, upon which the other pair, as shown to cross-pieces or bodyis to be placed the body or bed of the wagon, and which are provided with stud-staves L L, to secure the same, or to simple transverse connecting bars or rods, which shall serve to maintain their parallelism, and to which the bed or body of the vehicle may be secured in any suitable manner.

The lower ends of the bars A A are made to rest upon the bolsters D of the running-gear of the wagon, and are either secured directly thereto or to a separate cross-piece to be placed thereon and secured thereto.

The attachment of the cross-pieces O O to the longitudinal strips A A may be effected by adjustable clips E, instead of by permanent fastenings, so as to admit of a change in their position to or from the ends of the bars.

0 is a transverse bar or strip placed centrally over the intersection of the longitudinal bars, so as to afford a support to the body of the vehicle immediately upon the center of the springs.

In operation the weight of the body of the wagon and its contents carried upon the free ends of the longitudinal spring-bars A A causes them each to bend in a curve over the transverse bar upon which its upper end rests and which is nearest thereto. At the same time the weight borne upon the central transverse strip, 0, has a tendency to cause the lower ends of each of the longitudinal bars to bend in a curve over the transverse bar near est its said lower end. The resilient force of each longitudinal bar is thus brought into play in resisting this tension upon its opposite ends, (which operates to bend them in opposite directions,) and alfords an elastic support to the superincumbent weight.

The flexion of the bars produced by the pressure upon their ends alone has a tendency to bear upward the central portion of each, carrying therewith the transverse bar F, restin g thereon,so that this bar, in turn, is made to sustain its due proportion of the load with all the elasticity due to this upward pressure of the longitudinal bars under flexion, as described.

Metallic plates H may be interposed between the bearing-surfaces of the cross-pieces B B G, with the longitudinal bars A A to prevent them from wearing at these points.

The number of longitudinal bars may be increased, if desired, as shown in Fig. 2, in which case lighter and more elastic bars may be employed than where but two on a side are used, as shown in Fig. 1; but in all cases the arrangement of the transverse bars B B and G is the same.

I do not claim, broadly, the use of longitudinal interlocking bars A A to form an elastic support for the body of a wagon; nor do I claim the combination, with each other, of interlocking slatted frames for said purpose; but

What I do claim as new, and desire to secure by Letters Patent, is

1. A slatted spring-support for wagon-bodies, produced by the combination of elastic longitudinal bars A A, which are crossed, at or near their center,

with transverse supporting-bars B B, placed intermediate between the center and ends of the longitudinal bars, so that the ends of the longitudinal bars shall support the load and be free to bend over the transverse bars under its weight, substantially as and for the purpose herein set forth.

2. The combination, with the elastic intersecting longitudinal bars A A, crossed at or near their center and supported by transverse bars B B, interposed between the middle and ends thereof, of a central transverse 'bar, 0, resting upon the longitudinal tion, substantially as and for the purpose herein set forth.

CHARLES M. BLYDENBURGH. 'itnesses:

ELIJAH GRIsWoLD,

JAMES H. WARDLE.

bars at their interseco

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