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Henry Leland citations

Henry Martyn Leland, né le 16 février 1843 à Danville, Vermont et mort le 26 mars 1932 à Détroit, Michigan, est un industriel américain, fabricant de machines spéciales puis de moteurs pour l'automobile. Partisan de la qualité totale, il met au point le concept de l'interchangeabilité des pièces dans la construction automobile. Inventeur prolifique, il crée le système de contrôle à deux comparateurs « go » et « not go » destiné à faire effectuer des opérations de contrôle extrêmement précises par n'importe quel opérateur. Il est par ailleurs le fondateur des deux constructeurs américains actuels de prestige Cadillac et Lincoln.

D'origine quaker, il est un républicain convaincu et mène une existence rigoureuse sans tabac ni alcool. Son image reste celle d'un patriarche parcourant son usine avec un comparateur dans une main et une bible dans l'autre, toujours prêt à admonester un sermon à l'ouvrier qui n'aurait pas su réaliser son ouvrage correctement. Au cours de sa carrière, il est président de la SAE , ainsi que président de la Ligue des citoyens de Detroit . Wikipedia  

✵ 16. février 1843 – 26. mars 1932
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Henry Leland: 7   citations 0   J'aime

Henry Leland: Citations en anglais

“There always was and there always will be conflict between Good and Good Enough, and in opening up a new business or a new department one can count upon meeting resistance to a high standard of workmanship. It is easy to get cooperation for mediocre work, but one must sweat blood for a chance to produce a superior product.”

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Henry M. Leland

Source: Master of Precision: Henry M. Leland, 1966, p. 59

“At first we were of necessity slow in putting out those motors, but after we had gotten under way we delivered them so rapidly that Mr. Olds said we must have a motor incubator at our place.”

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Henry M. Leland

Source: Master of Precision: Henry M. Leland, 1966, p. 62; About the first motors Leland build for Ransom E. Olds in 1901

“The teams at times could go but a short distance every day. In bad weather at night there would be as many as 150 horses at one of the small frame inns which were not more than five or eight miles apart. Each driver had to care for his eight horses, feed, clean, card, harness and unharness. For all this work my father received the wages of $15 per month.”

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Henry M. Leland

Source: Master of Precision: Henry M. Leland, 1966, p. 20; Lelands father was farmer and drove an eight-horse wagon between Boston and Montreal. Leland gave a description of the working conditions of those drivers.

“If they had made that longer six-cylinder crankshaft strong enough and had supported it well enough, they would have obtained the smoother action they talks about in their advertisements. But they could not do that, and those early sixes had a very undesirable period vibration at certain speeds. That vibration more than offset the gain that they would have realized, if they had treated the crankshaft properly.”

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Henry M. Leland

Source: Master of Precision: Henry M. Leland, 1966, p. 146-7: About the development of a six-cylinder motor in 1913-14

“Our car was an Oldsmobile, delivered to our home by Mr. Olds himself. I recall how our family went out to the street curb to look at it. Mr. Olds worked quite a while cranking it, muttering something about each car having an individuality of its own. But after we began to make motors for him, father took the individuality out of them. After our own little Oldsmobile was properly equipped, it acted in quite an exemplary fashion.”

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Henry M. Leland

Source: Master of Precision: Henry M. Leland, 1966, p. 65. About the Leland family buying their first automobile around 1901

“Mr. Sloan, Cadillacs are made to run, not just to sell.”

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Henry M. Leland

Henry M. Leland, cited in David Farber. Sloan Rules: Alfred P. Sloan and the Triumph of General Motors,p. 14
Leland, as car builder, explained Alfred P. Sloan, the supplier of Hyatt bearings, that his bearings not (yet) met the requirements.

“On the train I was going over the problem of Sixes versus Fours and the disturbing periodic vibrations with which the 'six-cylinder manufacturers were contending. I realized the emphasis our competitors were placing on the fact that six smaller cylinders, producing the same maximum power as four larger ones, would result in smaller individual impulses, and consequent smoother action.
I knew that we were having good results with well-balanced four-cylinder motors. I first reasoned that if six light cylinders gave the same maximum power and lighter impulses than the tour, then eight still smaller cylinders would give still lighter impulses than the six cylinders. I also reasoned that, because of the lighter weight, those eight cylinder pistons could be run at higher speeds than either sixes or fours. Furthermore I did not like the six crankshaft. If made small enough to be in proportion with those light pistons, the extra length might introduce those undesirable vibrations; if made heavy enough to avoid; if made heavy enough to avoid these periodic vibrations there was the wight problem contend with.
As I lay awake pondering these factors, the idea came to me that we were having good success with four-cylinder motors; we would surely have equally good results with blocks of lighter four cylinders and pistons. Why not make up those smaller blocks of lighter four cylinders and pistons, and put two of the blocks together at an angle and avoid that troublesome long crankshaft. The more I thought of this idea on that trip, the more convinced I became that it could be worked out.”

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Henry M. Leland

Source: Master of Precision: Henry M. Leland, 1966, p. 147; Leland talking about his idea for a V8 engine around 1913-14. Partly cited in: Alexander Richard Crabb (1969), Birth of a giant: the men and incidents that gave America the motorcar. p. 315