Le timbre Sonnclair — L’Officiel du cycle, 19 September 1953, the Bell with a Continuous Ring and No Wheel Drive

From L’Officiel du cycle, du motocycle et du camping, 19 September 1953, N° 39, the paper’s Salon number du Cycle at the Porte de Versailles, page 87: le timbre Sonnclair: a bicycle bell giving a continuous ring without a wheel drive. The title, headings, captions and lists are transcribed as printed; the text is summarized in Ebykr’s words, and the page images carry it in full.

— Page 1 —
Le timbre SONNCLAIR

[Ebykr summary; the article’s text is not reproduced. The notice says this bell has truly brought something new to the field of the warning device: it gives a continuous ring without the intermediary of a system on the wheel, therefore without transmission. This is obtained through a very ingenious interior combination whose characteristic parts are an escapement, itself driven by the central gear on the axle, which engages and then releases a free plate. The latter then launches, like a flywheel, a free plate carrying three eccentrics on its rim (the sentence continues in the next column).]

[Text only: the upper part of a firm notice from a trade magazine column, set in justified lines across the full width of the crop. The heading “Le timbre SONNCLAIR” stands at the upper right in a bold roman typeface, with the firm name in capitals. The body is set in a light italic typeface with the first line of each paragraph indented. The last printed line ends in the middle of a sentence. There is no drawing, signature or agency mark, and no text from the reverse of the leaf shows through.]

— Page 2 —
[Ebykr summary, continuing from the previous column; the article’s text is not reproduced. The sentence continues: the free plate carries three eccentrics on its periphery with a certain play on their axis, and these strike the bell for as long as the plate turns, that is, long enough that the finger needs to work the mechanism only at spaced intervals. An ingenious device prevents the so-annoying loss of the “cloche” (the bell dome), which screws itself back on automatically while the bicycle is moving. The Sonnclair continuous warning device is made in duralinox A G 3 and is extremely robust; the whole is elegant and very compact, and the ring is powerful and pleasant. The agent holding the stock of this product is M. Lachèvre of Paris.]

[Text only: the lower part of a firm notice from a trade magazine column, set in justified lines across the full width of the crop, beginning in the middle of a sentence. The body is set in a light italic typeface with the first line of each paragraph indented; the word Sonnclair appears in upright roman type, and the name Lachèvre, in small capitals, closes the last paragraph. There is no drawing, signature or agency mark, and no text from the reverse of the leaf shows through.]