US757578A - Wagon-spring. - Google Patents

Description

c. L. THOMAS.

PATENTED APR. 19, 1904.

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pertains to make and use the same.

1 side guides of an ordinary lumber-wagon with UNITED STATES Patented April 19, 1904.

PATENT OFFICE.

CHARLES L, THOMAS, or AMSTERDAM, NEW YORK, ASSIGNOR TO w. s. SHULER. srRrNe COMPANY, OFAMSTERDAM, NEW YORK, A CORPORA- TION OF MAINE.

WAGON-SPRING.

SPECIFICATION forming part of Letters I Application filed October 7, 1902. i

To all whom it may concern.-

Be it known that L-GHARLES L. THOMAS, re siding at Amsterdam, in the county of Montgomery and State of New York, have invented certain new and useful Improvements in VVagon-Springs, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it ap- This invention relatesto springs for wagons and other vehicles, more especially to springs adapted to be used with an ordinary lumber- Wagon to cushion a supplemental bolster upon the hounds or axles; and to this end the invention consists in the features of construction, combinations of elements, and arrange: ments of parts, which will be hereinafter more fully described and the novel features thereof specifically pointed out in theclaims.

In the accompanying drawings, Figurel is a view in perspective showing the bolster and my improved supplemental bolster-springs for supporting the wagon-body, which is shown in dotted lines. Fig. 2 is a bottom plan view of a supplemental bolster and spring-rigging therefor detached. Fig. 3 is a detail of a one-piece coil-spring, which is connected directly to the bolster. Fig. 4 is a detail of a stirrup which rests on the bolster, and Fig. 5 is a sectional detail showing the means for securing the bolster-spring to the supplemental bolster.

Similar reference characters refer to similar parts throughout the several views.

The bolster (indicated at 1) and the side guides or standards 2 are of the usual and wellknown construction. The wagon-body (shown in dotted lines at A) is supported from said bolster by the interposition of supplemental bol sters, which are adapted for vertical movement in order to cushion the wagon-body by means of the spring-supports, as shown. Each supplemental bolster is composed of two spaced bars or beams3 3, which are connected by cross-pieces 4 l, extending across the upper sides of the beams. The ends of each supplemental bolster are supported by springs Patent No. 757,578, dated Apri119, 1904.

seen No. 126,281. on model.)

made of a single rod or length of steel and comprising coils 5 5, located beneath the supplemental-bolster beams 3 and inwardly from the end thereof. From each coil an arm 6 extends beneath the beam toward the outer end by the cross-arm 8, which is substantially in the plane of the upper side of the supplemental bolster, as shown. From the other side of the coils 5 arms 9 9 extend outwardly and downwardly and are provided at'the end with eyes 10. These eyes are adapted to have a swinging fit on the outwardly-projecting arms 11 of stirrups 12, which are adapted to rest upon the bolster 1, and they are held thereon by nuts 13. The arch or bend of the stirrups 12 is such that the outwardly-projecting arms 11 are brought well down below the upper edge of bolster 1 in order to secure a maxiof the supplemental bolster, and at the outer .end they are bent up, as at 7, and connected mum amount of spring action for the arms 9.

The arms 6 of the coil-springs are secured to the supplemental-bolster beams by eyebolts 14:, which pass up through the supplementalbolster beams and are secured at their upper ends, so that they may be readily adjusted or removed, by suitable nuts 15, resting in coun 'tersinks on the upper sides of the supplemental-bolster beams, as shown in section on Fig. 5. Upon inspection of Figs. 1 and 2 it will be seen that I have thus provided a construction wherein the supplemental bolster is free to move downward without having its movement limited by contact with other parts until the cross-pieces 4: contact with the upper edges of the bolster 1. The distance between the two coils 5 of each spring is such that the coils may pass down upon the sides of the bolster, thus preventing contact therebetween. The connecting cross-arm 8 is bent upwardly, as described, to lie substantiallyin the plane of the upper edge of the supplemental bolster, so that it is out of the way and will not limit the movement of the supplemental bolster before such movement is checked .by the cross-piece 4:. Moreover, inasmuch as the ends of the arms 9 are connected to the low-lying arms 11 of the stirrup which straddles the bolster these arms are allowed sufficient spring movement and at the same time are out of the path of movement of the other parts.

The advantages of this construction in providing for a maximum spring action of the supplemental bolsters and in providing a light yet strong spring-rigging will be clearly apparent from the description already given;

It is desirable to have a low-hanging body or body wherein the center of gravity is brought as low as possible,while at the same time providing a sufficient spring-support therefor. This is accomplished by my construction and arrangement of springs with relation to the supplemental bolster such that the supplemental bolster may be depressed to the level of the bolster without having its motion interfered with by the spring-support. A further advantage consists in the fact that the supplemental bolster, with its spring-support, is an in detail of construction will be readily'suggested which will not depart from the scope of this invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a device of the class described, in combination with a wagon-bolster, a body-supporting supplemental bolster, having spaced supplemental-bolster beams 3, 3 and cross-bars 4, 4 connecting the upper side of said supplemental-bolster beams, stirrups 12 adapted to straddle the wagon-bolster, and a one-piece coil-spring at each end of said supplemental bolster provided with coils 5, 5, arms 6 extending along the under side of said supplemental-bolster bars and suitably connected thereto, the connecting part 8 between said arms being bent upwardly so that it lies in substantially the plane of the upper side of said supplemental -bolster beams, and the spring-arms 9 extending downwardly from said coils and pivotally supported from said stirrups.

2. In combination, a wagon-bolster, a stirrup supported thereon, an integral spring engaging the ends of said stirrup and extending inwardly therefrom, coils in said spring, a supplemental bolster, and an extension of said spring joining said coils and projecting outwardly and upwardly to engage the bottom and end of said supplemental bolster.

3. In combination, a bolster, a-stirrup'supported thereon, an integral spring secured to the ends of said stirrup and extending inwardly, coils in said.spring, a supplemental bolster, a connection between said coils engaging the bottom and end of said supplemental bolster, and an opening in said supplemental bolster adapted to permit the free action of the spring.

In testimony whereof I affix my signature in the presence of two witnesses.

CHARLES L. THOMAS.

Witnesses:

A. R. OoNoVER, BURTON FISHER.

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