US272922A - Vehicle-spring - Google Patents

Description

(No Model.)

M. W. TUCKER.

VEHICLE SPRING.

No. 272,922. Patented Feb. 27, 1883.

ITE- TATES PAT NT OFFICE.

MORRIS W. TUCKER, OF SUMNER, MICHIGAN.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 272,922, dated February 27, 1883.

' Application filed December 9, 1882. (No model.)

To all whom it may concern Be it known that I, MORRIS W. TUCKER, of Sumner, county of Gratiot, State of Michigan, have invented a new and useful Improvement in Vehicle-Springs; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use it, reference being bad to the accompanying drawings, which form a part of this specification.

My invention consists in the combinations of devices and appliances hereinafter specified, and more particularly pointed out in the claims.

In the drawings, Figure l is a perspective view ofa side-bar vehicle with my improved springs attached. Fig. 2 is a similar view in which the springs run crosswise of the vehicle. Fig. 3 is a separate view, illustrating the construction of my improved spring, and showing the upper and lower sections before they are drawn together. Fig. 4 illustrates my spring as it would appear ready for use in the form of a single semielliptic spring. Fig. 5 illustrates variations.

The object of my invention is to make a construction which shall avoid the danger of breakage by backlashing.

I will describe my invention more particularly with reference to Figs. 3 and 4 of the drawings.

A represents the top section, and A represents the bottom section, of my spring. These two sections are made in substantially similar form, and preferably ofthe same curvature, but inverted in respect to each other, as shown in Fig. 3. Now, with suitable apparatus the middie of thelower section, A, is drawn up against or close to the upper section, A, and there secured in any suitable way-as, for instance, by clips or by a central bolt. The device will then have the appearance shown in Fig. 4:. It is apparent that the tension of the lower sectlon, A, is the reverse of that of the upper section, and neutralizes the tendency to backlash, which is a prolific cause of rupture in vehicle-sprin gs.

It is my purpose to make as an article of manufacture such a spring as is shown in Figs.

to the bottom of the vehicle-body in the same way that the lower section, A, in Figs. 3 and 4, is forced up from its reversed position against the upper section, A. So, also, as shown in Fig. 2, there may be the usual end springs and one or'more springs A, which are introduced in inverted position, and then their centers brought up and secured to the vehicle-body, as before explained.

I do'not limit myself strictly to a construction in which the lower sectionof the inverted spring is brought up and rigidly fastened to the upper section, A, or to the vehicle-body, for in some cases it may be advantageous to vary the tension of this lower section, and to thatendI may unite the center of the lower section to the upper section or the vehicle-body by either a strong spiral-spring connection or by an adj ustable-b0lt connection, so as to give to the lower spring any desired degree of ten siou. Both of these variations are illustrated in Fig. 5.

In the use of the term semi-elliptic I do not confine myself strictly to the semi-elliptic form, but desire to be understood as embracing any of the usual half-springs, such as are frequently'employed in side-bar buggies and other vehicles, and as contradistinguished from a spring which has upper sections united at the extremities, and with an open space be tween the sections. commonly known as full springs or full elliptic springs.

What I claim is- I 1. A vehicle-spring consisting of a semi-elliptic section, A, and an inverted semi-elliptic section, A, the concavities being toward each other, and section A brought at its middle point in against or nearly against the middle of the section A, substantially as described.

Q eaaeee 2. The combination, with a Vehicle, of one Ward until its natural curvature is reversed, IO or more semi-elliptic spring-sections, A, and and there secured by an adjustable fastening, one or more inverted spring-sections A, the substantially as described. middle of the latter sections being brought up In testimony whereofl sign this specification to or nearly to the vehicle-body and secured in the presence of two witnesses.

thereto, substantially as described. MORRIS W, TUCKER.

3. The combination, with a semi-elliptic sec- 1 itnesses: tion, A, of the inverted semi-elliptic section L. H. DAYTON,

A, the middle of the latter being forced up- GEORGE PALMER.

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