| 主权项 |
1. A manual push in and manual pull out substrate driven rotary cutting apparatus for cutting a fiberglass insulation batting substrate, comprising:
a) a housing having an inlet and outlet, the fiberglass insulation batting substrate being pushed into the inlet manually, the fiberglass insulation batting substrate being pulled out of the outlet manually; b) a rotary blade mounted in the housing between the inlet and outlet, said rotary blade having a circular cutting edge, the rotary blade turning on a first axis, the circular cutting edge extending for 360 degrees about the rotary blade; c) an anvil in the housing, the circular cutting edge of said rotary blade confronting said anvil at a location on said anvil, said fiberglass insulation batting substrate being fed into said location to cut said fiberglass insulation batting substrate, and said fiberglass insulation batting substrate being fed into said location to pinch said fiberglass insulation batting substrate between said circular cutting edge and said anvil to thereby drive said rotary blade when said fiberglass insulation batting substrate is pulled out of the outlet manually; d) wherein said rotary blade is mounted on a first roller, the first roller being rotatable on an axle that is engaged to the housing, said rotary blade being rotatable relative to said first roller which in turn is rotatable relative to said axle, said first roller and axle having said first axis, the first roller having an axial direction; e) wherein said anvil comprises an anvil roller comprising a resilient external surface that is confronted by said circular cutting edge of said rotary blade, said anvil roller turning on a second axis and being driven by the rotary blade when fiberglass insulation batting substrate is fed into said location, said first and second axis being parallel, the anvil roller having an axial direction, the fiberglass insulation batting substrate being fed between the first roller and anvil roller; f) wherein the rotary blade is slideably mounted on said first roller such that the rotary blade slides laterally on said first roller to laterally slide the circular cutting edge to cut the fiberglass insulation batting substrate to different widths, wherein the rotary blade is slideably mounted on said first roller such that the rotary blade slides under hand pressure laterally relative to said first roller; g) wherein said resilient external surface extends laterally to confront the circular cutting edge as the circular cutting edge slides laterally, said circular cutting edge engaging said resilient external surface at said location; h) wherein said rotary blade includes a first resistance to rotation relative to the first roller, wherein said first roller has a second resistance to rotation relative to said axle, with the first resistance to rotation being greater than the second resistance to rotation such that said rotary blade normally rotates with said first roller; i) wherein said rotary blade rotates in one direction and wherein said anvil roller rotates in the opposite direction when said fiberglass insulation batting substrate is fed into said location; j) wherein said rotary blade defines a plane, and wherein said rotary blade and anvil roller are adjustable to and away from each other in said plane to permit said rotary blade to slide laterally on said first roller; and k) wherein the apparatus is free of an electric power source or fuel powered power source for driving said rotary blade. |
