Note 55 — Chapter IV
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The standing of Franklin as an inventor would be better established if he had not been so resolute in his unwillingness to take out patents upon his inventions. Besides the various inventions mentioned by us in the text, he was the father of other valuable mechanical conceptions. The first hint of the art of engraving upon earthenware appears to have originated with him. Moved by his constant desire to inculcate moral truths, he suggested about 1753 to a correspondent the idea of engraving from copper plates on square chimney tiles "moral prints"; "which," to use his words, "being about our Chimneys, and constantly in the Eyes of Children when by the Fireside, might give Parents an Opportunity, in explaining them, to impress moral Sentiments."
He also appears to have anticipated the Argand burner. A description has come down to us of a lamp devised by him which, with only three small wicks, had a lustre equal to six candles. It was fitted with a pipe that supplied fresh and cool air to its lights. If Franklin did not invent, he was the first to communicate to his friend, Mr. Viny, the wheel manufacturer at Tenderden, Kent, the art of flexing timber used in making wheels for vehicles. But of few things did Franklin take a gloomier view than the fate of the inventor as his observations in a letter to John Lining, dated March 18, 1755, demonstrate. "One would not," he said, "of all faculties or qualities of the mind, wish, for a friend, or a child, that he should have that of invention. For his attempts to benefit mankind in that way, however well imagined, if they do not succeed, expose him, though very unjustly, to general ridicule and contempt; and, if they do succeed, to envy, robbery, and abuse."