Shearing tool

• US 3,083,456 A
• Filed: 08/09/1960
• Issued: 04/02/1963
• Est. Priority Date: 08/09/1960
• Status: Expired due to Term

• Current Assignee: Norris Marchant
• Original Assignee: Norris Marchant
• Inventors: Marchant, Norris
• Application Number:
  US04/048,406
• Time in Patent Office: 966 Days
• US Class Current: 30/210
• CPC Class Codes: B26B 19/282 Motors without a rotating central drive shaft, e.g. linear motors

Claims

1. A SHEARING TOOL COMPRISING A FIXED BLADE HAVING A PLURALITY OF TEETH EXTENDING FROM THE OPPOSED SIDE EDGES OF THE FORWARD PORTION THEREOF AND MOUNTING A MOTOR ON THE REARWARD PORTION THEREOF, SAID MOTOR INCLUDING A SHAFT EXTENDING FORWARDLY THEREFROM WITH AXIS OF ROTATION PARALLEL TO THE LONGITUDINAL AXIS OF SAID FIXED BLADE, A FIXED BEARING MEANS, A MOVABLE BLADE CORRESPONDINGLY HAVING A PLURALITY OF TEETH EXTENDING FROM THE OPPOSED SIDE EDGES THEREOF TO PASS OVER THE TEETH OF SAID FIXED BLADE WHEN RECIPROCATED IN DIRECTION ALONG THE LONGITUDINAL AXIS OF SAID FIXED BLADE, GUIDE MEANS TO GUIDE THE RECIPROCATION OF SAID MOVABLE BLADE WITH RELATION TO SAID FIXED BLADE, A CAM ON THE FORWARD END OF SAID MOTOR SHAFT AND OPERABLE BY MOTOR SHAFT ROTATION TO EFFECT RECIPROCATORY MOTION OF SAID MOVABLE BLADE, A BRACKET ON SAID MOVABLE BLADE BETWEEN SAID CAM AND SAID MOTOR, A SPRING INTERPOSED BETWEEN SAID BRACKET AND SAID BEARING MEANS AND AROUND SAID SHAFT TO MAINTAIN SAID CAM AND SAID MOVABLE BLADE CONTINUOUSLY URGED INTO OPERATIVE CONTACT REGARDLESS OF RELATIVE WEAR THEREBETWEEN, AND AN ANTI-FRICTION BEARING ON SAID BRACKET AGAINST WHICH SAID CAM BEARS IN ROTATION.