Apparatus for indicating the operation of a motor

• US 3,213,459 A
• Filed: 07/30/1963
• Issued: 10/19/1965
• Est. Priority Date: 07/30/1963
• Status: Expired due to Term

• Current Assignee: Hubert Riegger, Richard Bramsch Franz
• Original Assignee: Hubert Riegger, Richard Bramsch Franz
• Inventors: RICHARD BRAMSCH FRANZ, HUBERT RIEGGER
• Application Number:
  US04/298,608
• Time in Patent Office: 812 Days
• US Class Current: 346/18
• CPC Class Codes: G01P 1/125 with recording discs

Claims

1. IN AN APPARATUS FOR INDICATING ENGINE SPEED, IN COMBINATION, INDICATING MEANS FOR INDICATING THE SPEED OF REVOLUTION OF AN ENGINE, SAID INDICATING MEANS GIVING INDICATIONS IN PERCENTAGES OF A GIVEN RELATIVELY HIGH SPEED WHICH IS EQUAL TO 100% AND INDICATING MEANS HAVING AN INDICATING MEMBER CAPABLE OF INDICATING SPEEDS IN THE VICINITY OF AND RANGING BOTH ABOVE AND BELOW SAID 100% INDICATION;

AND TRANSMISSION MEANS OPERATIVELY CONNECTED TO SAID INDICATING MEANS AND ADAPTED TO BE CONNECTED TO AN ENGINE FOR TRANSMITTING A DRIVE THEREFROM TO THE INDICATING MEANS TO OPERATE THE LATTER, SAID TRANSMISSION MEANS HAVING A RATIO IN ITS TRANSMISSION WHICH WILL OPERATE THE INDICATING MEANS TO PROVIDE AN INDICATION OF 100% WHEN A GIVEN RELATIVELY HIGH SPEED OF REVOLUTION OF THE ENGINE IS REACHED, SAID INDICATING MEANS SUPPRESSING A GIVEN RANGE OF THE OPERATING SPEED OF THE ENGINE SO THAT THE RANGE OF MOVEMENT OF THE INDICATING MEANS CAN BE USED FOR THE REMAINDER OF THE SPEED OF OPERATION OF THE ENGINE.