US871811A - Pneumatic cushion. - Google Patents

Description

No. 871,811. PATENTED NOV. 26, 1907. W. G. MOCULLOUGH.

PNEUMATIC CUSHION.

APPLICATION FILED JULY 13. 1906.

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Specification of Letters Patent.

Patented Nov. 2%}, 1907.

Application filed July 13,1906. Serial No. 826.129.

To all whom it"may concern, 4

Be it known that 1, WILLIAM C. MoCUL- LOUGH, a citizen of the United States, residing at Bucyrus, in the county of Crawford and State of Ohio, have invented certain new and useful Improvements in Pneumatic Cushions; and I do declare the following to be a full, clear, and exact descri tion of the invention, such as will enable ot ers skilled inthe art to which i appertains to make and use the same.

- This invention relates to improvements in pneumatic cushions for elastically distancing two structures, and more particularly for use between the axles and the bodies of vehicles for absorbing shocks, jars and jolts.

The object of the invention is to rovide a shock absorbing device of this 0 aracter, which will. be simple, durable and comparatively inexpensive in construction and very effective for the urpose intended, so that its use upon the ve 'cle will dispense with the necessity of pneumatic tires u on the same.

l/Vith the above and other 0 jects in View,

my invention consists in the novel construe tion, combination and arran ement of devices hereinafter described an claimed.

In the accompanying drawings,-Figure 1 is a View showing the application of my invention; Fig. 2 1s an end elevation of the cushioning device; Fig. 3 is a longitudinal sectional view through the same; and Fig. 4 is a transverse sectional view.

Referring to the drawings by numeral, 1

, denotes my improvedpneumatic cushion or shock absorber, which as shown in Fig. 1 is mounted between an axle 2 and a body-sup- ,porting spring 3 of a vehicle of an description, but which may be interpose between any two structures which it is desired to elastically distance.

The device 1 consists of upper and lower cup-shaped members or holders 4, 5, and an interposed, inflated, hollow body 6 of elastic material, such as rubber. The cushioning body 6 is of oval form or egg-shaped, and is being of substantially semi-oval form and,

provided with a suitable valve connection 7, through which air ma be introduced into said body by means 01' a pump or the like.

The members 4, 5, are similar in shape, each having u on its inner face a similar-shaped seaiab, w llOll receives the body (5 and serves to retain the same therein.

Each of said members is formed upon its outer face with attaching; flanges 9, which may be secured u on the axle 2 and the s ring 3 by bolts, c ms or the like. The ower member 5 has formed at its opposite end upwardlyextending guide lugs 11, formed with vertically-arranged slots or openings 12, adapted to receive the reduced ends or pro'ections '13 upon the upper member 4. T e two each other, the u per member 4 being 13 sliding in the slotted guides 11 on the member 5.

The construction, operation and advantages of the invention will be readily understood from the fore oing description, taken in connection with t e accompanying drawmgs.

It will be seen that the device when interosed between the axle and the spring or ody of a ehicle will entirely absorb the short, Sudktefl jars or jolts, so that pneumatic tires may be dispensed with. By making the inflated body 6 and its holders or mem bars 4, 5, of the form shown, it will be seen that the body will be eiiectively retained between said members, and there will be little or no tendency of its working out.

Various changes in the form, proportion and the minor details of constmction may be resorted to without departing from the principle, or sacrificing any of the advantages of the invention, as defined by the appended claims.

Having thus described my invention, what tors-Patent, is,

body-supporting spring, the herein described cushioning device comprising the pair of holders, each having an integral projection on its outer side, at its center, formed with an attaching flange, one of said attaching flanges secured on the axle and the other secured to the center of the underside. of the spring, one of said'holders having end guide lugs provided with guide openings, and the other having projections operating in said guide openings and a cushioning body between the said holders.

in tesiimony whereof I have hereunto set my hand in prescmze of two subscribing wit- .ll-JSSGS. l WlLlJlAM (1. McOUlJLOUGl-l.

Witnesses:

II. B. W1|.r.soN, BENJ. G. Cows.

members 4, 5, are slidably engaged with guided in its vertica movement by its ends I claim as new, and desire to secure by Let-' In combination with a vehicle axle and a

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