Checking gage

Claim 1

A GAGE COMPRISING A GENERALLY U-SHAPED FRAME HAVING A PAIR OF OPPOSED ALIGNED ARMS, A BLADE MOUNTED UPON ONE ARM ADJACENT TO THE END OF THE ARM AND EXTENDING TRANSVERSELY THEREACROSS AND PROJECTING INTO THE SPACE BETWEEN THE ARMS, A BLADE ASSEMBLY MOUNTED UPON AND EXTENDING TRANSVERSELY ACROSS THE OTHER ARM OPPOSED TO THE BLADE OF THE FIRST MENTIONED ARM, SAID BLADE ASSEMBLY COMPRISING A BLADE SANDWICHED BETWEEN CONNECTED AND SPACED APART TOP AND BOTTOM GUIDE PLATES, SAID BLADE HAVING SLIDABLE LINEAR MOVEMENT BETWEEN THE GUIDE PLATES AND BEYOND THE ENDS THEREOF INTO THE SPACE BETWEEN THE ARMS AND TOWARD AND AWAY FROM THE BLADE OF THE OTHER ARM, BALL BEARING MEANS SUPPORTING THE SLIDABLE BLADE FOR ITS LINEAR SLIDABLE MOVEMENT TOWARD AND AWAY FROM THE BLADE OF THE OTHER ARM, MEANS YIELDINGLY TENSIONING THE SLIDABLE BLADE TOWARD THE BLADE OF THE OTHER ARM, A DIAL GAGE SUPPORTED BY THE FRAME AND HAVING A PLUNGER AND INDICATOR COUPLED WITH THE PLUNGER TO REGISTER THE MOVEMENT THEREOF, SAID PLUNGER HAVING COUPLING ENGAGEMENT WITH THE SLIDABLE BLADE OF THE BLADE ASSEMBLY TO BE ACTUATED THEREBY TO REGISTER MOVEMENT OF THE BLADE UPON THE INDICATOR, SAID TOP AND BOTTOM GUIDE PLATES BEING CONNECTED TOGETHER IN SPACED APART RELATIONSHIP BY SPACER CONNECTING MEANS SO AS TO PERMIT SLIDABLE BALL BEARING SUPPORTED MOVEMENT OF THE BLADE BETWEEN THE PLATES, AND SAID BALL BEARING SUPPORT FOR THE SLIDABLE BLADE COMPRISING TWO PAIRS OF BALL BEARINGS, ONE PAIR BEING DISPOSED ADJACENT TO EACH OF THE TWO LINEAR MARGINS OF THE BLADE.