US239179A - thomas j - Google Patents

Description

lModel.) T. J. MAGNER & G. L. THOMAS.

Torsion Spring for Vehicles.

- Patented March 22,1881. 2303f.

ljWENTORS [a M g ATTORNEY S WITNESSES daum V I I.

N,FEIERS, PHOTO-LITHOGRAPHER, WASHNGTON. D. 6..

UNITED STATES PATENT OFFICE.

THOMAS J. MAGNER AND CHARLES L. THOMAS, OF HORNELLSVILLE, N. Y.

TORSION-SPRING FOR VEHICLES.

SPECIFICATION formingpart of Letters Patent No. 239,179, dated March 22, 1881.

Application filedJ'anuary 8, 1881. (Model) To all whom it may concern:

Be it known that we, THOMAS J MAGNER and CHARLES L. THOMAS, of Hornellsville, in

.declare that the following is a full, clear, and

exact description of the construction and operation ot' the same, reference being bad to the annexed drawings, makinga part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a plan view. Fig. 2 is a transverse section. Fig. 3 is a detail side view. Fig. 4 is a sectional detail. Fig. 5 is a modification.

This invention has relation to torsion-springs for vehicles; and it consists in the improved features of construction and combination hereinafter fully described,and particularly pointed out in the claim. i

In the drawings hereto annexed, a- Wagonbod yis to be supported in front upon the fore carriage, B, and in rear on spring-bars O G.

I) is the king-bolt. v

E is the front axle, supporting near its ends the longitudinal semi-elliptic springs F F, attached thereto at their middles.

G G are the front and rear bars" of the fore carriage, B, carrying underneath the torsionsprings H H. These springs are composed of a bar of metal running along the under side of the bars G G, attached firmly at their middles by clasp and turning in boxes K at their ends. Instead of being in one piece, they may be made in two pieces, their meeting ends being held in clasp I. The outer ends, it h, of these torsion-springs are turned at right angles, curved, and have the arms g g, which enter and are held in eyes f f of springs F F. l

Instead of turning the ends of springs H H at right angles, they may be left straight, and be connected with the springs F F by the links L L.

Instead of using the two torsion-springs H H, one of them may be omitted, and the ends of the springs F F thereat be attached, by link or otherwise, to the spring-bar at that end.

M is the rear axle, carryingsemi-elliptic springs P P, with torsion springs R R, supporting spring-bars C O, the construction and arrangement being similar to that in front.

The boxes K are attached to the sprin g-bars, either by bolts passing through their ears It It or by clips.

This construction forms a device which is adapted for varying weights, the torsionspring readily yielding under slight pressure, and yet resisting excessive strain, which renders them advantageous in a platform-wagon, where the character of the load is constantly varyin g.

Torsion side springs having cranks at their outer ends, fixed at their inner ends to central clips upon the under faces of the side.

bars, and supported near their outer ends by clips, have been used in connection with semielliptic springs, and we desire only the construction hereinafter specifically claimed.

NVhat we claim is-- In a vehicle, the fore carriage, B, having the bars G G, provided with the end boxes, K, and middle clips, I, in combination with the torsion-springs H H, having ends it h, turned at right angles and curved to form arms g g, and the longitudinal semi-elliptic springs F F,

secured at their middles to the axle E, sub-

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