Abstract: An automatic crab leg shell cutting-in machine for processing crabs' legs. In order to charge the cutting-in machine with crab legs at a predetermined processing rate, the upper and lower feed-belts are provided in the longitudinal direction of the machine. Rotary cutting-knives are arranged therebetween on the both sides of a cutting-in section and depressing plates serving to depress the upper and lower feed-belts are provided opposite each other in such a manner that the upper and lower feed-belts have an increased or decreased clearance therebetween in the cutting-in section depending upon the dimensional conditions of a crab leg to be processed. The depressing plates are held so as to be vertically displaced with the aid of resilient means or shock absorbing means, whereas the rotary cutting-knives are arranged so as to approach the longitudinal axis of the feed-belts or move away therefrom in cooperation with resilient means or shock absorbing means and bell cranks.

Abstract: There is disclosed a horizontal fish kidney-removing machine which is adapted to mechanically remove the kidney of salmon or trout, the machine comprising a pair of conveyor belts provided at a distance in a vertical direction, a kidney-removing member disposed between the pair of conveyor belts, the removing member being composed of two flat plates which are combined by welding at both ends in boat-shaped forms each gradually diverging from the end to establish a space of a rectangular form at the central portion thereof, an inclining guide plate disposed upstream of the removing member and fixedly secured to an upper end of an induction plate, a plurality of injector nozzles disposed in the rectangularly-shaped space to inject a pressurized fluid therefrom so as to automatically wash out the kidney attached to the inner walls of the body of the salmon or trout, and a keep plate disposed opposingly to the injector nozzles to prevent the salmon or trout being fed with the conveyor belts from running out or es