A cutter for cutting a formed gutter discharged from a seamless gutter machine. The cutter may be positioned to cut a back wall of a formed gutter below a front upper edge of a front wall of the gutter. In turn, a gutter may be mounted to a building (e.g., a fascia board thereof) to achieve additional lift, thereby providing increased pitch over a given length of gutter while maintaining overlap between a gutter apron and a back upper edge of the back wall of the formed gutter.

A cutter for cutting a formed gutter discharged from a seamless gutter machine. The cutter may be positioned to cut a back wall of a formed gutter below a front upper edge of a front wall of the gutter. In turn, a gutter may be mounted to a building (e.g., a fascia board thereof) to achieve additional lift, thereby providing increased pitch over a given length of gutter while maintaining overlap between a gutter apron and a back upper edge of the back wall of the formed gutter.

A slitter according to an embodiment of the present art includes: an upper knife disposed above the electrode plate to rotate, thereby cutting the electrode plate; and a lower knife disposed below the electrode plate to partially overlap the upper knife and rotate, thereby cutting the electrode plate together with the upper knife, wherein the upper knife includes: a first inner surface extending to be inclined from a tip formed at the lowermost end to the lower knife; and an outer circumferential surface extending to be inclined from the tip to an opposite side of the lower knife, wherein the first inner surface has an inclination at a first angle from a vertical line V that is perpendicular to a rotation axis that serves as a rotation center of the upper knife, and the outer circumferential surface has an inclination at a second angle from the vertical line.

A slitter according to an embodiment of the present art includes: an upper knife disposed above the electrode plate to rotate, thereby cutting the electrode plate; and a lower knife disposed below the electrode plate to partially overlap the upper knife and rotate, thereby cutting the electrode plate together with the upper knife, wherein the upper knife includes: a first inner surface extending to be inclined from a tip formed at the lowermost end to the lower knife; and an outer circumferential surface extending to be inclined from the tip to an opposite side of the lower knife, wherein the first inner surface has an inclination at a first angle from a vertical line V that is perpendicular to a rotation axis that serves as a rotation center of the upper knife, and the outer circumferential surface has an inclination at a second angle from the vertical line.

A throatless rotary shear device includes an s-shaped frame, a feed wheel, and a cut wheel. The cut wheel can be adjacent to and offset from the feed wheel such that an overlap is defined therebetween. A v-shaped relief can be provided on the s-shaped frame. The v-shaped relief can be aligned with the overlap. Portions of material cut by the rotary shear device are urged in different directions by the v-shaped relief.

A throatless rotary shear device includes an s-shaped frame, a feed wheel, and a cut wheel. The cut wheel can be adjacent to and offset from the feed wheel such that an overlap is defined therebetween. A v-shaped relief can be provided on the s-shaped frame. The v-shaped relief can be aligned with the overlap. Portions of material cut by the rotary shear device are urged in different directions by the v-shaped relief.