Life, 1911-03-02 · page 3 of 52
Life — March 2, 1911 — page 3: what you’re looking at
What you’re looking at
This is **not a cartoon or satirical page**—it's a straight advertisement for Diamond Tires, published in Life magazine. The page presents technical comparisons between two tire types: the "Clincher" and "Straight Side" models. The central image shows cross-sectional diagrams of both tire designs to illustrate their structural differences. The advertisement's strategy emphasizes engineering credibility rather than satire. It addresses common misconceptions about tire quality, arguing that Diamond tires offer superior construction based on balanced design principles, not size or novelty features. The text repeatedly stresses "quality" and "proper design" as what matters most to consumers. This represents early 20th-century automotive advertising when tire technology was still developing and manufacturers competed partly through technical education of the public.
📄 Transcribed text from this page (OCR, searchable)
Machine-transcribed from the original scan — historical spelling and the odd misread are preserved.
"LIFES Look to What —what determines the service you will get for your money. It is the Quality and Quantity of materials used, workmanship employed and the knowledge and character of the men behind the guns. Diamond TIRES In their 12th triumphal year have yet to offer a feature adopted for advertising purposes. A CORRECT PRESENTATION OF THE CLINCHER AND STRAIGHT SIDE TIRE SUBJECT Diamond Straight Side or Hookless Tire and Rim Diamond Quick Detachable Also called Mechanical type and Duntop type Clincher Tire and Rim Arrows in both tires show counterbalanced lines of pressure. The black portions show that part of each tire in which this pressure is not balanced. _ THE RELATIVE MERITS of these tires, differing only in method of attachment, have never been correctly presented so far as we know. We to correct some of the misappre- hensions and misrepresentations heretofore current. THE CLINCHER AUTOMOBILE TIRE IS THE STAND- ARD OF THE WORLD. With 10 years of development by the leading manufacturers, it stands to-day a faultless con- struction. The principle of utilization of inflation pressure for retention on the rim is mechanically correct. The radial lines of force tending to cause the tire to leave the rim are nearly counterbalanced by similar forces tending to keep it on the rim. The unbalanced, or destructive force (shown in black in the cuts above) is relatively slight, thereby reducing the strain on the beads to a minimum easily within their capacity. The lateral lincs of force in a properly designed clincher tire are all active in keeping the tire beads engaged in the hooks of the nm, . .WE EMPHASIZE “PROPERLY DESIGNED” because itis readily seen that if a tire is out of balance—that is, too large in crc ection for the rim—the active forces will not balance perfectly. In a properly designed clincher tire, in- fation but increases the force holding the tire on the rim. DIAMOND TIRES ARE MADE IN BOTH CLINCHER AND STRAIGHT SIDE TYPES. _ NO INHERENT POINTS in the construction of the Straight ide tire prevent its production in first-class quality. This Ask for Booklet THE DIAMOND RUBBER COMPANY, Akron, Ohio, Counts Most— type has never equalled the leading clincher tires because its sales have been almost. exclusively to builders of low-priced cars, unwilling to pay the price for Diamond quality. AS TO SIZES—Note that the Straight Side rim has a wider base between the flanges than the clincher rim. Therefore, a given amount of tire material will enclose greater air space. We do not wish to deceive the public, however. This difference does not mean more high cost materials, it means more inex- pensive air, and the carrying capacity of a Straight Side tire is exactly the same as that of a clincher tire of a correspond- ing size. The Straight Side tire is retained on the rim by bands of the finest piano wire, of tremendous strength, which is neces- sary, as the strains in this tire are unbalanced strains. These braided wire bands are rigid. They neither stretch nor constrict to grip the rim, nor do those of any other tire manufacturer constrict. Frictional contact under pres- sure of inflation prevents “‘creeping.”’ THE DIAMOND STRAIGHT SIDE TIRE IS THE BEST OF ITS KIND, built with a clear understanding of the principles involved, not for the purpose of securing initial equip- ment orders at a low price. RIM CUTTING IS SOMETHING WHICH NOW FIG- URES MORE LARGELY IN ADVERTISING MATTER than in cost to the tire user. It is caused by imperfectly fitting tires in either the clincher or straight side type. Rim cutting is not ordinarily one of the results of riding tires deflated, but instead, bruises and loosening of the tread are likely to result. We do not guarantee tires not to be injured by deflated running nor does any manufacturer. PATENTS—Neither the clincher tire nor the Straight Side tire is covered or controlled by any valid patent. TIRE SIZES—SO-CALLED “ OVERSIZE” AND OTHER NOVELTIES WE WISH IT DISTINCTLY UNDERSTOOD that Dia- mond tires are neither oversize nor undersize. Their size is not determined for advertising purposes and should not be. It is fixed intelligently and scientifically by engineers who know, and Diamond tires are all the right size for their respective rim sizes. There is no larger Straight Side tire than the Diamond. But we have frankly told you this means not more rubber, but more air. The point is that you must not fix your attention on im- material or misleading things. An inferior tire with a thin wearing surface is a poor thing at any price—no matter how attached to the rim or how much “oversize.” WHAT COUNTS MOST, costs the manufacturer most and determines the service you get is quality and quantity of ma- terials used and the knowledge and character of the men behind the guns. It means more to you that we offer tires containing better rubber, more rubber, thicker treads—tires that will last longer, puncture less easily, stone bruise rarely —than that we give you a little larger tire, if the latter means only a little more air. N. It's worth while AND ALL PRINCIPAL CITIES 433 comicbooks.com