Abstract: A punching apparatus for forming a series of slots in a board, comprising: an upper wheel and a lower wheel, wherein the upper wheel is opposed to the lower wheel, and further wherein: the upper wheel comprises a series of punches disposed on a frame of the upper wheel, wherein each punch comprises a shearing portion that extends from the frame, and which is configured in the shape of a slot; and the lower wheel comprises a series of mating dies, wherein each mating die of the series of mating dies comprises a cavity, wherein the shearing portion of a particular punch is gradually disposed within the cavity of a particular mating die of the series of mating dies as the upper wheel and the lower wheel move in relation to each other.

Abstract: An undercut saw including a housing, a motor within said housing, a drive shaft rotated by said motor, and a blade mount mechanically linked to said shaft such that a circular saw blade mounted on said mount is rotated when the motor rotates the drive shaft. A fixed blade guard circumscribes a portion of the blade and allows selectable height adjustment of the blade. A stabilization bar on the fixed blade guard may be extended to make the device more stable. On the underside of the fixed blade guard a dust channel allows dust to be swept by the rotating blade into a dust port. The dust channel allows positioning of the dust port away from the leading edges of the fixed blade guard.

Abstract: Disclosed is a rotary apparatus suitable for processing and working a web or sheet of materials such as plastic films, non-woven substrates, metal foils, paper, diaper cores and the like. Such apparatus includes counter-rotating anvil and tool rolls through which the web or sheet of material to be worked is fed. The tool roll includes at least one processing tool for working the web or sheet of material. The force of the tool on the web or sheet being worked is regulated by a force applied to the processing tool or the anvil surface of the anvil roll by a force-transmitting chamber which includes a fluid. The force applied is adjusted by altering the pressure of the fluid within the force-transmitting chamber.