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875,147
Having thus described my invention, what I claim as new and desire to secure by Letters- Patent, is:- As a new article of manufacture, a tire 5 tightener comprising a wedge-shaped block designed to be introduced between the ad- jacent ends of a wheel rim and having a lon- gitudinally extending tenon receiving re- cess opening toward the front entrance end 10 of the block, the inclined side faces of the block being provided with rearwardly pitched engaging teeth designed to engage the con- tiguous ends of the rim and to serve as the sole means for holding the block in engage- 15 ment with the latter, the teeth on one side of the block being disposed alternately with re- spect to those on the other for facilitating
entrance of the block between the rim ends, a protecting cap-plate formed on the rear base end of the block, and protecting side 20 plates formed on the side edges of the latter and joined at their rear ends to the cap plate, the latter and side plates being arranged to fit respectively on the inner and side faces of the rim for effectually preventing the en- 25 trance of foreign matter into the wedge-re- ceiving space. In testimony whereof I have hereunto set my hand in presence of two subscribing wit- nesses.. JAMES H. CAMERON. .witnesses: OWEN P. HALE, A. P. DOHONEY.