Cutting apparatus for an i-beam

Claim 1

AN APPARATUS FOR SEVERING THE GENERALLY HORIZONTAL WEB OF AN I-BEAM ALONG AN UNDULATING PATTERN, COMPRISING: CARRIAGE MEANS DISPLACEABLE LONGITUDINALLY UPON SAID I-BEAM AND HAVING FIRST AND SECOND WHEEL MEANS ROLLINGLY ENGAGING OPPOSITE FLANGES OF SAID I-BEAM, RESPECTIVELY, FOR SUPPORTING SAID CARRIAGE MEANS UPON SAID I-BEAM; A CYLINDRICAL GROOVE CAM JOURNALED ON SAID CARRIAGE MEANS AND FORMED WITH AN ENDLESS PERIPHERAL UNDULATING CAMMING CHANNEL, SAID CYLINDRICAL GROOVE CAM HAVING AN AXIS OF ROTATION EXTENDING GENERALLY PARALLEL TO SAID WEB AND TRANSVERSELY TO THE DIRECTION OF DISPLACEMENT OF SAID CARRIAGE MEANS; A LEVER FULCRUMED ON SAID CARRIAGE MEANS FOR PIVOTAL MOVEMENT GENERALLY PARALLEL TO SAID WEB AT A PIVOTAL PORTION HAVING AN AXIS TRANSVERSE TO SAID WEB AND HAVING A CAM-FOLLOWER PORTION SLIDABLY ENGAGING SAID GROOVE; WEB-SEVERING MEANS MOUNTED UPON A FURTHER PORTION OF SAID LEVER REMOTE FROM SAID PIVOTAL AND CAM-FOLLOWER PORTIONS FOR DISPLACEMENT BY SAID LEVER ACROSS SAID WEB TO DESCRIBE AN UNDULATING PATTERN CONFORMING TO THAT OF SAID CHANNEL; PATTERN-AMPLITUDE-ADJUSTING MEANS AT ONE OF SAID PIVOTAL AND CAM-FOLLOWER PORTIONS FOR VARYING CONCURRENTLY BOTH THE DISTANCE BETWEEN SAID PIVOTAL PORTION AND SAID OTHER PORTION AND THE DISTANCE BETWEEN SAID CAMFOLLOWER PORTION AND SAID OTHER PORTION, THEREBY REGULATING THE RATION BETWEEN SAID DISTANCES AND CONTROLLING THE AMPLITUDE OF THE PATTERN OBTAINED WITH SAID CYLINDRICAL CAM; AND DRIVE MEANS INCLUDING A VARIABLE-RATIO TRANSMISSION INTERCONNECTING SAID CAM AND ONE OF SAID WHEEL MEANS FOR CONCURRENTLY DISPLACING SAID CARRIAGE MEANS ALONG SAID I-BEAM AND ROTATING SAID CAM, SAID CAM BEING ROTATABLE AT SELECTIVELY VARIABLE RATES RELATIVE TO THE RATE OF DISPLACEMENT OF SAID CARRIAGE MEANS BY SAID TRANSMISSION FOR CONTROLLING THE PERIOD OF UNDULATION OF SAID PATTERN.

Claim 2

AN APPARATUS FOR SEVERING THE GENERALLY HORIZONTAL WEB OF AN I-BEAM ALONG AN UNDULATING PATTERN, COMPRISING: CARRIAGE MEANS DISPLACEABLE LONGITUDINALLY UPON SAID I-BEAM AND HAVING FIRST AND SECOND WHEEL MEANS ROLLINGLY ENGAGING OPPOSITE FLANGES OF SAID I-BEAM, RESPECTIVELY, FOR SUPPORTING SAID CARRIAGE MEANS UPON SAID I-BEAM; A CYLINDRICAL GROOVE CAM JOURNALED ON SAID CARRIAGE MEANS AND FORMED WITH AN ENDLESS PERIPHERAL UNDULATING CAMMING CHANNEL, SAID CYLINDRICAL GROOVE CAM HAVING AN AXIS OF ROTATION EXTENDING GENERALLY PARALLEL TO SAID WEB AND TRANSVERSELY TO THE DIRECTION OF DISPLACEMENT OF SAID CARRIAGE MEANS; A LEVER FULCRUMED ON SAID CARRIAGE MEANS FOR PIVOTAL MOVEMENT GENERALLY PARALLEL TO SAID WEB AT A PIVOTAL PORTION HAVING AN AXIS TRANSVERSE TO SAID WEB AND HAVING A CAM-FOLLOWER PORTION SLIDABLY ENGAGING SAID GROOVE; WEB-SEVERING MEANS MOUNTED UPON A FURTHER PORTION OF SAID LEVER REMOTE FROM SAID PIVOTAL AND CAM-FOLLOWER PORTIONS FOR DISPLACEMENT BY SAID LEVER ACROSS SAID WEB TO DESCRIBE AN UNDULATING PATTERN CONFORMING TO THAT OF SAID CHANNEL; PATTERN-AMPLITUDE-ADJUSTING MEANS AT ONE OF SAID PIVOTAL AND CAM-FOLLOWER PORTIONS FOR VARYING CONCURRENTLY BOTH THE DISTANCE BETWEEN SAID PIVOTAL PORTION AND SAID OTHER PORTION AND THE DISTANCE BETWEEN SAID CAMFOLLOWER PORTION AND SAID OTHER PORTION, THEREBY REGULATING THE RATION BETWEEN SAID DISTANCES AND CONTROLLING THE AMPLITUDE OF THE PATTERN OBTAINED WITH SAID CYLINDRICAL CAM; AND DRIVE MEANS INCLUDING A VARIABLE-RATIO TRANSMISSION INTERCONNECTING SAID CAM AND ONE OF SAID WHEEL MEANS FOR CONCURRENTLY DISPLACING SAID CARRIAGE MEANS ALONG SAID I-BEAM AND ROTATING SAID CAM, SAID CAM BEING ROTATABLE AT SELECTIVELY VARIABLE RATES RELATIVE TO THE RATE OF DISPLACEMENT OF SAID CARRIAGE MEANS BY SAID TRANSMISSION FOR CONTROLLING THE PERIOD OF UNDULATION OF SAID PATTERN.