US1018895A - Tire. - Google Patents

Description

E. H. FREA'S.

TIRE.

APPLICATION FILED AUGA, 1910.

Patented Feb. 27, 1912.

2 SHEBTSSKEET 1.

FEE

TIRE.

N FILED AUG. 4, 1910.

Patented Feb. 12.

2 SHEETB- H T 2.

APPLIOATI EDWIN H. FREAS, OF PHILADELPHIA, PENNSYLVANIA.

Specification of Letters Patent.

Application filed August 4, 1910.

Patented Feb. 27, 1912.

Serial No. 575,444.

To all whom it may concern:

Be it known that I, EDWIN H. FREAS, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Tires, of which the following is a specification.

This invention relates to an improvement in resilient tires.

The primary object of the invention is to so construct a tire of sections of resilient material that the same will eliminate the vibration which occurs in the use of the ordinary type of blocked tire.

Another object is to so arrange and position the blocks that the same may be readily and conveniently attached and removed.

WVith these and other objects in view, the present invention consists in the combination and arrangement of parts which will be hereinafter more fully described and particularly pointed out in the appended claim, it being understood that the changes in the specific structure shown and described may be made within the scope of the claim without departing from the spirit of the invention.

In the drawings: Figure 1 is a plan view, Fig. 2 a side elevation partly in section. Fig. 3 a transverse section, Fig. 4: a view of one of the blocks removed, and, Fig. 5 a view of one of the retaining strips.

In the drawings: 10 designates the telly of the wheel, to either side of which is secured a plate 11, a bolt 12 passing through said plate and felly at various points. Each of the plates 11 is provided with flanges 13 which extend toward the center of the felly. Arranged obliquely across the felly are a plurality of blocks 14 which are formed of rubber, which are rhomboidal in top plan and trapezoidal in end elevation. The blocks are spaced from each other, their beveled extensions 15 extending beneath the flanges 13. A plate 16, which is of substantially the same shape as the box, is adapted to rest between each of the blocks, its beveled surface 17 engaging the beveled extension 18 of the blocks. These plates are provided with the beveled portions 19 which extend beneath the flanges 13 in the same manner as the extensions 15. Passing through the plates and the felly 10, are bolts 20 which securely lock said plates against removal.

It will be seen from the foregoing that the blocks 14 are securely held against removal, their end portions being locked beneath flanges 13, and their extended base portion being securely clamped to the folly by means of the plates 16. The many advantages of a construction of this sort will be' clearly apparent the arrangement being such that the blocks may be conveniently replaced when the same become worn. Attention is also called to the fact that the spacing of the blocks will allow their tread portions to expand to take up the load. It will also be noted that the peculiar positioning of the blocks allows one block to partially receive the pressure before the same has entirely left the adjacent block. This not only takes up the vibration which occurs in tires which employ rectangular blocks, but it also causes the blocks to wear evenly.

hat is claimed is:

The combination with a wheel felly, of a pair of plates detachably secured thereto, said plates having inwardly directed and inclined marginal flanges, a plurality of resilient blocks diagonally disposed upon said folly, and having flaring side and end basal portions, bars secured diagonally on the felly, said bars having inwardly beveled side faces and outwardly beveled end faces whereby when said bars are arranged between blocks the beveled side faces thereof engage the flaring side portions of the blocks, and the inwardly directed flanges of the plates engage the beveled end faces of the bars.

' In testimony whereof I affix my signature, in the presence of two witnesses.

EDWIN H. FREAS.

WVitnesses:

TI-IAD. B. SARGEANT, M. LOUISE Lown.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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