US845210A - Spring. - Google Patents

Description

oarran sir JAWS 6. WHITTLE, CF JACKSON, lVilCl llGrldl.

risrairr SPHWG Specification oi Letters Eaten-h Patented Feb. so, 1907.

Application filed February 6, 1906. Serial NC stasis.

T0 all'whom itmcty concern.-

Be it known that 1, JAMES C. WHITTLE, a citizen of the United States of America, residing at Jackson, in the county of Jackson and State of Michi an, have invented certain new and useful niprovements in Spring Suspension, of which the following is a spec1' fication, reference being had therein to the accompanying drawings.

This invention relates to improvements in vehicle-springs; and its obiect'is' to. royide means for so supporting the vehicle ody or frame upon and attaching to the spring that all sudden shocks or jars will as taken up by the spring, and not transmitted to the body, thus preventrng'undne Villfififiitli01@=,frl1d,

'furthento provide means for supeorting the bodyor frame upon an elliptical at two widely-separated points.

It is also an object of the inventionto pro' .B a tubular axle, and C an elliptical spring supported upon the axleand secured thereto by a clip D, all as commonly formed and embodied in automobile construction;

Ordinarily the sill is attached directly to the upper half of the elliptical spring at its center; but in my construction [make no connection at that point whatever between the sill and spring, but instead secure, by means of theordinary clip, a plate 1 to the inner face of said half of the spring,which late is provided With downwardly-extendlng parallel ears 2, between which. are pivoted the levers 3 and 4. Said levers, together with the lovers 5 and 6, which are similarly pivotally attached to a like ear-plate secured by the clip D to the lower hall of the spring, form a toggle connection, between the upper and lower members of said spring, and by forming said levers with forked ends they all lie in the vertical center of the spring. The forked ends of the levers 5 and 6 are extended longitudinally beyond the points of pivoted attachment of the lovers 3 and 4 thereto to form the arms 7, to the ends of which 'armsthe hangers 8 are pivotallylattached. These hangers. are bent or oliset'laterally to bring their opposite ends directly beneath the sill .A and are each formed with a horizontal seat a for a coiled springflO, which is contained Within a cup or socket member 11, attached tothe sill. by means of a pin 12, extending through the sill and through openings in cars on the upper end of the out). The springseat on the hangeris held in alinement with. the cup'bya stud 13 on theseat extendin upward within the cup inside the coiled spring- I VJ hen the axiefis suddenly moved verticall'y by the vehicle-wheel coming in contact withan obstruction in the road or otherwise, the vibration caused by the shock will be 'whollytaken up by thes orings, as it must pass from the elliptical spring through the toggle-levers, hangers, and coiled springs into the cups and'thence to the sill. The vertical movement is greatly reduced by the toggle-levers, and the hangers being pivotally attached to the ends of the toggle with the coiled springs interposed between them and the sill vibration caused by any ordinary obstruction or from the load in the ehicle will be ehtirely eliminated; 1

The sill is. supported by each; elliptical spring at two ornts some distance apart and noon the en s of the toggle-levers, which w en under load exert a lesser force to draw the two parts of the elliptical spring toward each other than the load would exert if placed directly on the spring, atly mini :niz ing the shocks, and thus a very steady easyriding Vehicle is secured.' The toggle-levers by reason of this force whiclrthey exert on the spring tend to equalize the shocks and prevent rebound or the excessive vertical movement of the body caused by sudden and violent vertical" movement of the wheel and axle.

Having thus fully described my invention, what i claim is- 1.. The combination. with an elliptical spring, of two levers pivotally attached at one end to the half off said spring near its middle, two si'nilsr levers pivoted at one end to the other halt oi the spring near" its middle and pivotally connected at their opposite ends to the ends of the other levers, vertically-disposed hangers pivotally attached to said levers near their connecting ivots, and load-supporting means on each ranger.

nection. between the members 2. The combination with an elliptical spring, of levers pivotally attached to the two members of said spring and forming a double-toggle connection between the same,

arms extending longitudinally from the C011",

extending ears on the lower member thereof,

two levers pivoted between each pair of ears at one end and pivoted together 'at their opposite ends to form a double-toggle conof the spring, said levers all lying in the vertical plane of the longitudinal center line of said spring; hangers attached to said levers and extending laterally to a point outsidethe vertical plane of the spring; bearing-springs seated upon the laterally-extending ends of said hangers; and means adapted to be attached to the sill oi avehicle-frame to receive said springs.

4. The combination with an elliptical spring; of levers pivotally attached to the members of said spring to form a double toggle connection between said members; hangers pivotally attached to said levers near their connecting-pivots and formed with spring-seats at their free ends; socket members adapted to be attached to a sill, coiled springs in said socket members engaging the seats on the hangers; and studs on the said seats extending upward within the socket members inside said springs.

5. In combination with the sill, an elliptical spring, a pair of levers each pivoted to one member of saidspring, a second pair of levers pivoted to the other member of said spring and to said lust-named levers, and

an elliptical 1 spring and a sill, a toggle connection between the members of said sprin an arm extended angularly from said togg e connection, and

compressible means supported from said arm and engaging said sill.

7. In combination with an elliptical spring and a sill, toggle-levers connected to each'of the halves of said spring, and verticallyi-disposed compressible .means pivotally supported at one end from the connecting-point between 'said levers and, at the opposite end pivoted to said sill. I

8. In combination with an elliptical spring and a sill, a toggle connection attached thereto, a hanger supported from said connection, a spring on said hanger, and a socket member supported'from. said sill and receiving said spring.

9. In combination with an elliptical spring and a sill, a pair of levers pivoted together at one end and at their opposite ends pivoted to the halves of said spring, and a hanger supported from the pivotal point between said levers and having an offset part underlying said sill and compressible means between said sill and offset part of the hanger.

10. In combination with an elliptical spring and a sill arranged side by side, a movable connection between the halves of said spring, a supporting means movably related to said connection and underlying said sill, and compressible means between said sill and said supporting means.

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

JAMES C. WHITTLE.

Witnesses O'r'ro F. BARTIIEL, Tnos. B. LONGSTAFF.

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