Automatic gas recorders

Claim 1

AN APPARATUS FOR AUTOMATICALLY RECORDING THE PRESENCE OF A TRACE CONSTITUENT IN A GAS OF THE TYPE WHEREIN THE GAS IS CONSTRAINED TO PASS, OVER A SUBSTANTIAL AREA, THROUGH A STRIP OF ABSORBENT PAPER IMPREGNATED WITH A CHEMICAL WHICH IS COLOR REACTIVE TO THE TRACE CONSTITUENT COMPRISING A PRIME MOVER, A SHAFT ROTATED BY THE PRIME MOVER, A CAM ROTATED BY THE SHAFT, A PIVOTED LEVER CONTACTED BY SAID CAM AND ADAPTED TO BE ANGULARLY OSCILIATED IN RESPONSE TO THE ROTATION OF SAID CAM, A GAS CHAMBER, A FIRST FIXED PORTION OF THE GAS CHAMBER, A SECOND PORTION OF THE GAS CHAMBER MOVABLE OUT OF CONTACT WITH THE FIRST PORTION OF ANGULAR DISPLACEMENT OF THE PIVOTED LEVER, SAID PORTIONS EACH HAVING AN INTERNAL DIAMETER OF AT LEAST ONE INCH, A SURFACED FACE ON EACH PORTION, BETWEEN WHICH SURFACED FACES OF PORTION OF THE PAPER STRIP MAY BE GRIPPED, GUIDES AND RESILIENT MEANS IN WHICH GUIDES AND AGAINST WHICH RESILIENT MEANS SAID SECOND PORTION OF THE GAS CHAMBER IS MOVABLE RELATIVE TO THE FIRST PORTION, A GAS INLET IN SAID FIRST PORTION, A GAS OUTLET IN SAID SECOND PORTION, INTERRUPTED SERRATED WHEELS ROTATED BY THE SHAFT, THE TEETH ON SAID WHEELS BEING SO SITUATED AS TO GRIP THE PAPER STRIP AND PROGRESS IT ONLY WHEN THE GAS CHAMBER PORTIONS ARE SEPARATED, A CRANK ROTATED BY THE SHAFT, SAID CRANK BEING ADAPTED TO OPERATE A GAS COCK IN SUCH A MANNER THAT THE FLOW OF GAS ID DISCONTINUED DURING THE PERIODS IN WHICH THE GAS CHAMBER FACES ARE NOT IN GAS TIGHT ABUTMENT AND MEANS WHEREBY THE PRESENCE INDICATED BY A COLOR STAIN ON THE PAPER OF SAID TRACE CONSTITUENT MAY BE RECORDED DURING FORMATION.

Claim 2

AN APPARATUS FOR AUTOMATICALLY RECORDING THE PRESENCE OF A TRACE CONSTITUENT IN A GAS OF THE TYPE WHEREIN THE GAS IS CONSTRAINED TO PASS, OVER A SUBSTANTIAL AREA, THROUGH A STRIP OF ABSORBENT PAPER IMPREGNATED WITH A CHEMICAL WHICH IS COLOR REACTIVE TO THE TRACE CONSTITUENT COMPRISING A PRIME MOVER, A SHAFT ROTATED BY THE PRIME MOVER, A CAM ROTATED BY THE SHAFT, A PIVOTED LEVER CONTACTED BY SAID CAM AND ADAPTED TO BE ANGULARLY OSCILIATED IN RESPONSE TO THE ROTATION OF SAID CAM, A GAS CHAMBER, A FIRST FIXED PORTION OF THE GAS CHAMBER, A SECOND PORTION OF THE GAS CHAMBER MOVABLE OUT OF CONTACT WITH THE FIRST PORTION OF ANGULAR DISPLACEMENT OF THE PIVOTED LEVER, SAID PORTIONS EACH HAVING AN INTERNAL DIAMETER OF AT LEAST ONE INCH, A SURFACED FACE ON EACH PORTION, BETWEEN WHICH SURFACED FACES OF PORTION OF THE PAPER STRIP MAY BE GRIPPED, GUIDES AND RESILIENT MEANS IN WHICH GUIDES AND AGAINST WHICH RESILIENT MEANS SAID SECOND PORTION OF THE GAS CHAMBER IS MOVABLE RELATIVE TO THE FIRST PORTION, A GAS INLET IN SAID FIRST PORTION, A GAS OUTLET IN SAID SECOND PORTION, INTERRUPTED SERRATED WHEELS ROTATED BY THE SHAFT, THE TEETH ON SAID WHEELS BEING SO SITUATED AS TO GRIP THE PAPER STRIP AND PROGRESS IT ONLY WHEN THE GAS CHAMBER PORTIONS ARE SEPARATED, A CRANK ROTATED BY THE SHAFT, SAID CRANK BEING ADAPTED TO OPERATE A GAS COCK IN SUCH A MANNER THAT THE FLOW OF GAS ID DISCONTINUED DURING THE PERIODS IN WHICH THE GAS CHAMBER FACES ARE NOT IN GAS TIGHT ABUTMENT AND MEANS WHEREBY THE PRESENCE INDICATED BY A COLOR STAIN ON THE PAPER OF SAID TRACE CONSTITUENT MAY BE RECORDED DURING FORMATION.