A differential impulse conveyor, characterized in that it comprises a first body having a closure member with an aperture therethrough, a pinion gear having a first diameter and a first plurality of teeth, a pinion shaft penetrating the aperture of the closure member and connected at a proximal end to the pinion gear on a first side of the closure member, an arm member connected to a distal end of the pinion shaft on a second side of the closure member opposite the first side, a support member connected to the arm member and extending substantially parallel to the pinion shaft but offset from being in alignment with the pinion shaft, the offset being sufficient to align an axis of the support member with a point on a periphery of the pinion gear; a second body having an interior cavity with an interior ring gear of a second diameter that is twice the first diameter, the interior ring gear having a second plurality of teeth about a periphery of the interior ring gear, the second plurality of teeth being adapted to engage the first plurality of teeth on the pinion gear and the second plurality being twice the first plurality, the interior cavity of the second body having an opening; a protruding portion of the closure member surrounding the aperture through which the pinion shaft passes, the protruding portion having a radially exterior wall; and a bearing having a bore to receive and surround the protruding portion of the closure member upon engagement of the closure member with the opening to the interior cavity of the second body to close the interior cavity and to position the first plurality of teeth of the pinion shaft in engagement with the second plurality of teeth of the interior ring gear; wherein the support member that is aligned with the point on the periphery of the pinion gear reciprocates along a straight path as the axis of the pinion gear revolves about a center axis of the second body as the pinion gear rotates about the axis of the pinion shaft while remaining in engagement with the interior ring gear. a first body having a closure member with an aperture therethrough, a pinion gear having a first diameter and a first plurality of teeth, a pinion shaft penetrating the aperture of the closure member and connected at a proximal end to the pinion gear on a first side of the closure member, an arm member connected to a distal end of the pinion shaft on a second side of the closure member opposite the first side, a support member connected to the arm member and extending substantially parallel to the pinion shaft but offset from being in alignment with the pinion shaft, the offset being sufficient to align an axis of the support member with a point on a periphery of the pinion gear; a second body having an interior cavity with an interior ring gear of a second diameter that is twice the first diameter, the interior ring gear having a second plurality of teeth about a periphery of the interior ring gear, the second plurality of teeth being adapted to engage the first plurality of teeth on the pinion gear and the second plurality being twice the first plurality, the interior cavity of the second body having an opening; a protruding portion of the closure member surrounding the aperture through which the pinion shaft passes, the protruding portion having a radially exterior wall; and a bearing having a bore to receive and surround the protruding portion of the closure member upon engagement of the closure member with the opening to the interior cavity of the second body to close the interior cavity and to position the first plurality of teeth of the pinion shaft in engagement with the second plurality of teeth of the interior ring gear; wherein the support member that is aligned with the point on the periphery of the pinion gear reciprocates along a straight path as the axis of the pinion gear revolves about a center axis of the second body as the pinion gear rotates about the axis of the pinion shaft while remaining in engagement with the interior ring gear.