Universal Joints - Part 3: History and Terminology
28.8 هزار بار بازدید -
9 سال پیش
-
Weber State University (WSU) -
Weber State University (WSU) - Automotive Technology Department - Transmission Lab. This is the third in a series of videos on universal joints, constant velocity joints, and driveshafts. In this episode, we look at the history and proper terminology of universal joints from Hieronymus Cardano and his 1557 swiveling gimbal, to Robert E. Hooke and his 1675 sundial, to Christopher Polhem's 1697 "Re-invention", to Clarence W. Spicer's 1904 improvements to today's modern universal joints.
Timeline:
0:00 Start
0:10 Introduction
1:48 Hieronymus Cardino and his 1557s invention of the swiveling Gimbal called the "Cardan Joint"
2:46 Research on Robert E. Hooke by Professor Alan Mills of the University of Leicester, in Leicester, UK. and the Royal Society of England.
6:17 Robert E. Hooke, the sundial clock, and his discovery of the properties of a "universal joint"
10:53 Robert E. Hooke 1675 discoveries and the "Hooke's Joint" is sometimes incorrectly called a "Cardan Joint"
13:33 Christopher Polhem's 1697 "Re-invention" or Hooke's work and called it the "Polhem Knot"
15:50 Clarence W. Spicer's 1904 improvements to today's modern universal joints.
19:43 An early advertisement of Spicer self-lubricating universal joints and a propeller shaft
20:22 Clarence W. Spicer's early universal joint patents
21:40 Spicer's 1905 cross-style universal joint
22:46 Charles Dana joins Spicer
23:24 Examples of early universal joints
26:15 Example of early universal joint tool
29:30 A 1933 roller bearing universal joint patent
31:22 Universal joint part names
32:55 A 1933 roller bearing universal joint
36:31 Universal joint service intervals
38:13 Snap rings
40:26 1957 version of Spicer universal joints
43:00 Why bowed snap rings can cause universal joint failures
44:30 Is the snap ring reusable?
46:18 Improvements over the years to universal joints
48:51 1925 Hardy-Spicer joint venture
50:00 Society of Automotive Engineers (SAE) official terminology standard J901
51:20 Two other Dana Corporation inventions: The 1956 Power-Loc differential and the 1982 aluminum driveshaft.
Subscribe to the weberauto Youtube channel for more great videos.
Questions for teachers:
1. Why is Hieronymus Cardino's name mistakenly used for a type of universal joint (The Cardan Joint)?
2. How did Robert E. Hooke discover that driveshafts do not rotate at a constant velocity if there is any angle to the universal joint?
3. What happened to the speed of the driveshafts when Robert E. Hooks connected two universal joints together on the same shaft?
4. What did Christopher Polhem do that is so controversial with regard to universal joints?
5. What name should be used when discussing universal joints: Cardan, Hooke, or Polhem?
6. For what invention is Clarence W. Spicer famous?
7. What man joined Clarence W. Spicer and helped grow the company into a giant company that still exists today?
Visit the following website for information on how to attend our school and obtain an associate's degree or bachelor's degree in Automotive Technology.
http://www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel...
Timeline:
0:00 Start
0:10 Introduction
1:48 Hieronymus Cardino and his 1557s invention of the swiveling Gimbal called the "Cardan Joint"
2:46 Research on Robert E. Hooke by Professor Alan Mills of the University of Leicester, in Leicester, UK. and the Royal Society of England.
6:17 Robert E. Hooke, the sundial clock, and his discovery of the properties of a "universal joint"
10:53 Robert E. Hooke 1675 discoveries and the "Hooke's Joint" is sometimes incorrectly called a "Cardan Joint"
13:33 Christopher Polhem's 1697 "Re-invention" or Hooke's work and called it the "Polhem Knot"
15:50 Clarence W. Spicer's 1904 improvements to today's modern universal joints.
19:43 An early advertisement of Spicer self-lubricating universal joints and a propeller shaft
20:22 Clarence W. Spicer's early universal joint patents
21:40 Spicer's 1905 cross-style universal joint
22:46 Charles Dana joins Spicer
23:24 Examples of early universal joints
26:15 Example of early universal joint tool
29:30 A 1933 roller bearing universal joint patent
31:22 Universal joint part names
32:55 A 1933 roller bearing universal joint
36:31 Universal joint service intervals
38:13 Snap rings
40:26 1957 version of Spicer universal joints
43:00 Why bowed snap rings can cause universal joint failures
44:30 Is the snap ring reusable?
46:18 Improvements over the years to universal joints
48:51 1925 Hardy-Spicer joint venture
50:00 Society of Automotive Engineers (SAE) official terminology standard J901
51:20 Two other Dana Corporation inventions: The 1956 Power-Loc differential and the 1982 aluminum driveshaft.
Subscribe to the weberauto Youtube channel for more great videos.
Questions for teachers:
1. Why is Hieronymus Cardino's name mistakenly used for a type of universal joint (The Cardan Joint)?
2. How did Robert E. Hooke discover that driveshafts do not rotate at a constant velocity if there is any angle to the universal joint?
3. What happened to the speed of the driveshafts when Robert E. Hooks connected two universal joints together on the same shaft?
4. What did Christopher Polhem do that is so controversial with regard to universal joints?
5. What name should be used when discussing universal joints: Cardan, Hooke, or Polhem?
6. For what invention is Clarence W. Spicer famous?
7. What man joined Clarence W. Spicer and helped grow the company into a giant company that still exists today?
Visit the following website for information on how to attend our school and obtain an associate's degree or bachelor's degree in Automotive Technology.
http://www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel...
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