R. G. and Simple Machines

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Across
  1. 1. rube's jo at the Evening Mail
  2. 4. pulleys with grooved rims
  3. 7. sloping surface (2 words)
  4. 8. rests on a fulcrum
  5. 10. tapers to a thin edge
Down
  1. 2. rube goldberg in the dictionary
  2. 3. device with few or no moving parts (2 words)
  3. 5. rube's real name
  4. 6. large and small often used with a wheel and axle
  5. 9. cap, machine, or lag