| US Patent: 5,117,880 
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| Shield for cutting blade | 
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| Patentees: |  
 | Charles J. Baird (exact or similar names) - Pittsburgh, PA |  | Kenneth Kapton (exact or similar names) - Verona, PA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Oct. 16, 1990 |  
| Granted: | Jun. 02, 1992 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.
 
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| Description: |  | A bench type router/shaper which includes (i) a spindle drive pack which incorporates the motor and the spindle into a unitary package so as to establish and maintain a spatial relationship between the motor and the spindle, (ii) a semi-elastic drive belt encompassing the spindle and drive shaft which has a modulus of elasticity effective for providing effective power transmission while permitting removal and replacement of the drive belt without repositioning of the spindle and/or the drive shaft, (iii) a spindle adjustment mechanism for repositioning the longitudinal position of the spindle and thereby the depth of the cutter which includes a rotatable bell crank, a spindle in communication with the first extremity of the bell crank for linear movement of the spindle based upon rotational movement of the bell crank, and a rotatable handle in communication with the second extremity of the bell crank for producing rotation of the bell crank based upon rotation of the handle and (iv) a protective shield over the cutter which provides maximum protection with minimal interference and includes a horizontal plate which is laterally pivotable about a first pivot point proximate the right end of the horizontal plate, and a vertical plate which is longitudinally pivotally connected to the horizontal plate about a second pivot point proximate the left end of both plates. |  |