US296347A - Vehicle-spring - Google Patents

Description

(No Model.) v

R. MUL-HOLLAND.

Y VEHICLE; SPRING. No. 296x347. y Patented Apr. 8, 1884i ummm n, WA.

I i l In RICHARD MLHOLLAND, OF DUNKIRK, NEW YORK.

'VEHlCLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 296,347, dated April 8, 1884.

Application tiled May 31,1852. (No model.)

To @ZZ whom it may concern.'

Beitknownthat I, RICHARD MULHOLLAND, a citizen of the United States, residingin Dunkirk, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in Vehicle-Springs, of which the following is a specification.

My invention relates to certain improvements in vehicle-springs, which will be fully and clearly hereinafter shown by reference to the accompanying drawings, in which- Figure l represents an under or bottom view of a vehicle, showing a similar view of my invention. ig.V 2 is a side elevation ofthe same. Fig. 3 is an end view; and Figs. 4 and 5 are detached views, showing modified ways of' constructing aportion ofthe torsion-springs.

The object of my invention is to produce a device that will at all times work easy without binding or cramping, and at the same time permit the body of the vehicle to pass downward and upward, either above or below the plane of the end leaf-springs.

A represents the body of a vehicle, having at its front and rear ends the usual end leafsprings, or a spring-bar or its equivalent.

The torsion-springs G are preferably made in t pairs, a pair being connected to each end ofthe vehicle, as shown; but, if desired, thesprings may be formed from a single bar or rod, substantially as shown in Figs-l and 5. The springs O [see Fig. l) are bent at their ends to form the arms a, which are secured, in the usual way, by bolts at the ends and an eyepiece or staple, or in any other well-known way, at the point where the bend is. The portions of the springs which are subjected to torsion are secured to the body A by bearingplates b, so that while firmly held in' pla-ce they are allowed to turn or twist. At the outer ends of the springs C are curved arms G,

formed by bending them in an outward direction, substantially as shown at c. They are then bent in a forward direction, (seeFig.-1,) and are again bent outward in the direction of the length of the end leaf-springs or bars, thereby forming the parts d, which are secured to the ends of the leaf-springs E, or to the end bars, D, so that the portion d extends under 5o and in a line with the longitudinal center of the springs E or bars, and are secured by bolts c. It will be seen from this construction that while the parts d are directly under and in a line with the springs e, the parts c and G are outside ofthe springs, or between the ends of the body A and the leaf-springs or bars, so that the body can move freely past thesprings, either down or up.

The object in connecting the torsion-springs to the end leaf-springs by the portions d, ex- 6o tending in the same direction with a line drawn through the longitudinal center of the spring E, .is to prevent the cramping or bending of the same. If the torsion-springs were bent so as to pass through a hole directly across the ends of the leaf-spring or bar, it will be readily seen that the outer endsof the springs would bend rst or bend the easiest, and thereby bindin the journal or opening through which it passed, and in so bending it would 7c not only become tight in the journal, and refuse to act properly, but it would also bend or twist the spring or bar to which it is attached out of shape, and thereby injure or partly destroy both of them, and thus prevent 7 5 One of the objects p their practical operation. of my invention is to overcomethese obj ections.

When leaf-springs E are used in connection with the torsion-springs C, the pressure of the load upon the latter will be equal to that upon 8o the parts d are connected to a shackle', F, the 9o ends being pivoted by a pin, f, thereby allowing for the movements of the ends of the springs to or from each other, produced by the downward and upward movement of the body of the vehicle.

I claim as my invention In a vehicle-spring, the combination, with the body and end leaf-springs or barsof the torsion-springs having their outer arms bent at right angles (or nearly so) to their length, roo

which arms are provided with an additional bend nearer their ends in a line with the length ofthe torsion-springs, or substantially so, andwith a short bend in the direction of the length of the leaf-spring or bar, so that l In testimony that I claim the above I have the ends of the arms are Connected under the hereunto subscribed my name n the .presence center of the leasprings, thereby allowing of two witnesses.

the body of the vehicle to move downward and RICHARD MULHOLLAND. 5 upward, and pass the plane ofthe leaf-springs Witnesses:

or bars, substantially as and for the purposes GEORGE P. IsHAM,

described. i

PETER J. MULEOLLAND.

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