US257040A

US257040A - Vehicle-spring

Info

Publication number: US257040A
Authority: US
Publication date: 1882-04-25
Anticipated expiration: 1899-04-25

Description

(No Model)" L. A.MELBURN.

v VEHICLE SPRING. No. 257,040. Patented Apr. 25,1882.

I J c 3 I d a 6 I "f a ,5 (Z afi'd WITNESSES INVENTOR @MZ /m% 3? d? MGM ATTORNEYS.

UNITED STATES PATENT -OFFICE.

LAFAYETTE A. MELBURN, OF DENVER, COLORADO.

VEHlCLE-SPRlNG.

SPECIFICATION forming part of Letters Patent No. 257,040, dated April 25, 1882,

Application filed January 20, 1882. (No model.) I

To all whom it may concern:

Be it known that I LAFAYETTE ALLEN MELBURN, ofDenver, in the county of Arapahoc and State of Colorado, have invented a new and useful Improvement in Vehicle- Springs, of which the following is a full, clear, and exact description, reference being bad to the annexed drawings, forming part of this specification. i

In Letters Patent No. 250,565 1 have shown a vehicle-spring having its ends curved reversely and projecting laterally beyond the side bars, with the said ends secured underneath the side bars by means of pendent shackle-links.

My present invention consists in constructing the springin threeremovable parts in such manner as to preserve the elasticity of each part.

In the accompanying drawings, Figure l is a side view of a side-bar buggy provided with springs constructed and arranged according to my invention. Fig. 2 is a vertical transverse section of the same. Fig. 3 is a detail cross-section, showing the end of a spring as attached to a side bar; and Fig. 4. is a detail of one of the end parts removed from the main or central part of the spring.

The body A of the buggyis supported upon the side bars, B B, which are secured to the front head-block, a, and the rear axle, b. The body A rests on and is bolted to the convex middle portion of the springs O O, the ends of which are secured to the side bars.

Instead of forming the springs O in one piece, as in my former invention, I construct a joint in the portions immediately beneath the side bars, forming the spring in three removable parts. The central part, c, of the spring corresponds in shape to the common half-spring, while the two outer parts, 0 are constructed with a partially-cylindrical hearing, d, to form a joint with the downwardcurved end of the central part, and are curved outward from the joints in circular, or-nearly circular, form, and theninward underneath the side bars, B, to which they are secured by the clips 0. The curved portion (1 of the part c is thus made to project laterally beyond the side bar, as in my former invention, while the joints (1 give greater elasticity to the spring. The bearing in the joint (2 may be secured, if desired, to the central part, 0, instead of the part c.

I am aware that a vehicle-spring has before been constructed in three parts, with the end parts adapted to be secured to the side barsin such manner as to project beyond them atthe sides; but the joints between the parts are formed at or near the center of the end curves of the spring, so that the elasticity of said curves is practically broken and neutralized. The end parts of such a spring are merely projections from the side bars of but little, it any, flexibility, upon which the main portion of the spring is hung. In my invention, on the contrary, the end parts of the springform theend curves thereof-that is to say, the end parts are formed with a nearly circular curve, with one end immediately beneath the other, so that the joints will not break the elasticity of the curves.

Among other advantages to be gained by a spring constructed according to myinvention, the curved laterally-projecting parts 0 may be used in connection with a common half-spring, thus making easily available a cheap elastic vehicle-spring and it is designed that the said parts 0 shall be so used.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isr The vehicle-sprin g extension 0 formed with an outward and inward curve of nearly circular form, and adapted to be secured to a side bar at one end and -to form a flexible joint with the endof a spring at the otherata point underneath the side bar, substantially as and for the purpose set forth.

. LAFAYETTE ALLEN lllELBUR-N.

Witnesses CHAS. D. CAMERON, J P. GODDARD.