Fly cutter tool
OwnerEdward Canadyinventor
Life of this patent
Estimating the term…
Abstract
An adjustable fly cutter tool for cutting and forming blanks of metal, wood, plastic, glass, etc. The tool can be used on a conventional lathe or milling machine, and enables the operator to continuously change the depth of the cut into the blank without slowing or stopping the tool operation. The cutting tool is mounted on a threaded bar movable in the x and/or y direction and is axially received in a threaded advancement gear which is actuated by a ratchet assembly that extends or retracts the position of the threaded bar holding the cutter as the main gear is rotated. A non-rotating lever journalled around the cutter drive shaft activates the assembly.
Claims7
A rotary cutter assembly for machining operations comprising in operative combination:
- (a) a first shaft adapted to be rotatably driven about its axis;
- (b) means for holding a cutting tool mounted on said first shaft normal to said axis, said holding means being movable in a Y direction radially normal to said shaft axis;
- (c) said cutting tool holder means includes an externally threaded second shaft having means for holding a cutting tool, and having means for preventing rotation of said second shaft, said second shaft being received in a radial hole in said first driven shaft;
- (d) means for radially advancing said cutting tool holder mounted in association with said first shaft;
- (e) means for actuating said radial advancing means disposed rotationally stationary during the rotation of said first shaft, and providing for motion of said cutting tool holder outwardly or inwardly in said radial direction responsive to selectable actuation thereof;
- (f) said radially advancing means includes:
- (i) a Y-motion advancing member comprising a disc member having a central threaded aperture receiving said second threaded shaft, and said disc is disposed in a slot in said first shaft, and
- (ii) an axially slidable first lever mechanism engaging said disc member in a ratchet relationship;
- and
- (g) said actuating means includes a second lever mechanism engaging said first lever mechanism.
Dependencies are inferred from the claim text.