US1088738A - Spring system. - Google Patents

Description

W. H. SON. SPRING SYSTEM. APPLIUATION FILED im. 26, 1907,

Patented- Mar. 3, 1914 7 l il .9

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WILLIAM H. SON, OF WILKES-BARRE, PENNSYLVANIA.

SPRING SYSTEM.

Specification of Letters Patent.

Patented Mar. 3,:1914.

Application filed March 26, 1907. Serial No. 364,678.

To all whom t may concern Be it known that I, VILLIAM I-l. SON, of WilkeseBarre, Luzerne county, Pennsylvania, have invented'a new and useful Spring System, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation showing one form of a spring arrangement; Fig. 2 is a section on the line II-II of Fig. l; and Fig. 3 is a similar view showing a modification.

My invention has relation to a system of springs, and particularly vehicle springs, such as those used onautomobiles, wagons, etc., the object being to provide means for absorbing or cushioning the recoil of the .main spring or springs to thereby absorb or neutralize the jumping or pounding of the y, ivel lconnected to the s vehicle body 1n passing over rough roads, etc.

-To this end, my invention consists in using a secondary or auxiliary spring in connection with a main sp1-in and so arranged as to come into action upon the recoil of the main spring. v

y invention also consistsin the novel construction, arrangement and combination of parts all substantially as hereinafter described and pointed out inthe appended claim. l

Referring to the accompanying drawings, Figs. land 2, the numeral 2.designates a frame member, which, may be a portion of a vehicle frame. 3 is a semi elliptical spring, which is secured to the support or axle 4 by the'usuall clip 5and whose ends are connected to the frame member 2 to sustain the load carried by said member. 6 designates an auxiliary or 'secondary spring, which is connected at oneend tothe central portion of the spring 3, and at the opposite end to the frame member 2. This sprin consists of .n intermediate coil 6', lfrom t `e, ends of vhich extend the arms 6, which are respecpring 8 and frame mem er 2 by means of suitable pins or bolts 7. The upper arm of the secondary spring is 4shown as being flattened to'form a slotted portion 11, which loosely engages the upper securing bolt L .The framework 2 is capable of a slight normal up and down movement without bringing the secondary spring into action. Upon any movement of the frame beyond these limits, however, the end wall of the slot will 'e'nffage with the bolt 7 and thereby bring tie secondary spring into play. The coils 6 of this secondary spring are so wound that upward movement of the frame 2 will tend to close the coils, and therefore will bring their resistance into action to oppose such upward movement; while a downward movement of the frame memberl tends to open the coils sothat they offer comparatively little resistance to movement in this direction. I Vhen the vehicle wheels strike an irregularity or obstruction in the road, the recoil ot' the main spring 3, and the consequent upward throw of the frame member 2 brings the coil 6. into action, and its resistance is opposed to such upward movement, thereby bringing the frame mehr.4

ber gradually and easily back to its.norm:11`

position. This, not only avoids the disagreeable shocks to the occupants of the vehicle, but it also avoids injury to the various parts of the vehicle due,to the shocks caused by violent recoils of the main springs.

In the form shown in Fig. 3, the secondary spring is shown as interp sed between the two halves of an elli tical sipring 8, to which its ends are secured y the clip plates 9 and pivot 10 or other suitable joint.

-Tbe advantages of my invention result from the use of the secondary spring a1-` ranged to oppose the upward movement of the main spring after it has beenmoved a predetermined distance, while offering little or no resistance. This secondary spring affords simple and effective means for the purpose, which can be readily applied to existing spring systems. The vehicle may be provided with any number of these secondary springs, as may be found necessary, and their location, arrangement, and manner of connection to the main springs and to the vehicle frame may be changed in various ways, without departing from the spirit and scope of my invention, since The combination with an axle, a vehicle, and a main spring supported upon the axle Lesen/es and Supporting' the vehcle,' of a supple# In testimony whereof, have hereunto sel mental spll'mg comprising dllvergng arms my hand.

connected a s rin coil W ose tension s Y' increased byy the epaaton of the arms, the WL'MAM H SON arms being connected respectively to the ve- YVtnesses:

hcle and the axle, one of the connections be- .E J. ROTH,

ing a sldable one, substantialy as descbeil?. NoLAN,

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