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Spindle drive assembly for a surface-treating machine

  • US 3,899,852 A
  • Filed: 08/23/1974
  • Issued: 08/19/1975
  • Est. Priority Date: 08/23/1974
  • Status: Expired due to Term
First Claim
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1. A spindle drive assembly for a surface-treating machine driven by a portable electric motor mounted in a housing and having a drive pinion engaging said assembly, said assembly comprising:

  • a. a spindle journaled in the housing perpendicular to the drive pinion, b. a driven gear affixed to the spindle in superposition to and in operative engagement with the drive pinion, c. face apertures formed on the side of the driven gear opposite the drive pinion, d. a pin carried by the housing for engaging any one of the face apertures, e. means connected to the pin to normally bias the pin in the direction away from the face apertures, and f. manually operated means formed on the pin for operator actuation in overcoming the bias means to urge the pin to engage one of the face apertures to lock the driven gear and the spindle against rotation.

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