Method and apparatus for measuring the concentration of solid contaminants contained in liquids

Claim 3

The method according to claim 1 wherein a filter web is admitted into the liquid in said container to pass about the periphery of said filtering cylinder, whereby said substance is caused to deposit on said filter web, and the deposited substance is continuously removed out of said container together with said substance deposited on said filter web.

Claim 4

The method according to claim 1 wherein said layer of said substance deposited on said filtering cylinder is continuously peeled off from said filtering cylinder by means of a peel off roller which is rotated in contact with said filtering cylinder at a point above the liquid level in said container, and the peeled off layer of said substance is continuously discharged out of said container.

Claim 5

The method according to claim 3 wherein a vibration is imparted to said peel off roller to cause it periodically collide against the peripheral surface of said filtering cylinder thereby continuously peeling off said layer of said deposiTed substance from said filtering cylinder and said peeled off layer is discharged to the outside of said container.

Claim 6

The methd according to claim 3 wherein said peel off roller is provided with a plurality of circumferential grooves and is imparted with a vibrating force so as to force said layer of said deposited substance into said grooves and then attract said layer to remove the same from the periphery of said filtering cylinder, and the removed layer is continuously discharged to the outside of said container.

Claim 7

Apparatus for measuring the concentration of a substance floating or suspending in a liquid, said apparatus comprising a container, means to admit said liquid into said container at a constant rate, a filtering cylinder rotated in said liquid contained in the container, means to discharge to the outside the filtrate accumulated in said filtering cylinder, a filter web, means to cause said filter web to travel in said container about the periphery of said filtering cylinder thereby depositing said substance upon said filter web, means to detect the liquid level in said container, means controlled by said liquid level detecting means for rotating the driving device of said filtering cylinder at a speed proportional to the liquid level in said container, a speed detector to detect the speed of said driving device, and an indicator responsive to the output of said speed detector for indicating the concentration of said substance contained in said liquid.

Claim 8

Apparatus for measuring the concentration of a substance floating or suspending in a liquid, said apparatus comprising a container, means to admit said liquid into said container at a constant rate, a filtering cylinder rotated in said liquid contained in the container, means to discharge to the outside the filtrate accumulated in said filtering cylinder, a filter web, means to cause said filter web to travel in said container about the periphery of said filtering cylinder thereby depositing said substance upon said filter web, means to detect the liquid level in said container, means controlled by said liquid level detecting means for rotating the driving device of said filtering cylinder at a speed proportional to the liquid level in said container, a speed detector to detect the speed of said driving device, and an indicator responsive to the output of said speed detector for indicating the concentration of said substance contained in said liquid.

Claim 9

The measuring apparatus according to claim 6 which further comprises a thickness detector for detecting the thickness of said filter web on which said substance contained in said liquid has been deposited, and means for modifying the output of said speed detector with the output of said thickness detector.

Claim 10

Apparatus for measuring the concentration of a substance floating or suspending in a liquid, said apparatus comprising a container, means to admit said liquid into said container at a constant rate, a filtering cylinder rotated in said liquid thereby causing said substance to deposit on the periphery of said filtering cylinder, means to discharge to the outside the filtrate accumulated in said filtering cylinder, a peel off roller disposed close to said filtering cylinder for removing said substance deposited on the periphery of said filtering cylinder, means to detect the liquid level in said container, means controlled by said liquid level detector for rotating the driving device of said filtering cylinder at a speed proportional to the liquid level in said container, a speed detector to detect the speed of said driving device, and an indicator responsive to the output of said speed detector for indicating the concentration of said substance contained in said liquid.

Claim 11

Apparatus for measuring the concentration of a substance floating or suspending in a liquid, said apparatus comprising a container, means to admit said liquid into said container at a constant rate, a filtering cylinder rotated in said liquid thereby causing said substance to deposit on the periphery of said filtering cylinder, means to discharge to the outside the filtrate accumulated in said filtering cylinder, a peel off roller disposed close to said filtering cylinder for removing said substance deposited on the periphery of said filtering cylinder, means to detect the liquid level in said container, means controlled by said liquid level detector for rotating the driving device of said filtering cylinder at a speed proportional to the liquid level in said container, a speed detector to detect the speed of said driving device, and an indicator responsive to the output of said speed detector for indicating the concentration of said substance contained in said liquid.

Claim 12

The measuring apparatus according to claim 8 which further comprises a separating filter located close to said filter cylinder on one side of said container to which said liquid is admitted, a peel off roller located above the liquid level in said container on the opposite side thereof for peeling off a layer of said substance deposited on the periphery of said filtering cylinder, a vibrating and percussion mechanism for vibratory engaging said peel off roller against the periphery of said filtering cylinder, and a crank arm eccentrically mounted on a driving shaft for reciprocating said vibrating and percussion mechanism.

Claim 13

The measuring apparatus according to claim 9 wherein said crank arm is connected to said vibrating and percussion mechanism through a connecting bolt of an adjustable length.

Claim 14

The measuring apparatus according to claim 9 wherein said peel off roller is provided with a plurality of peripheral grooves.

Claim 15

The measuring apparatus according to claim 11 wherein said grooves are independent parallel grooves.

Claim 16

The measuring apparatus according to claim 11 wherein said grooves comprise helical grooves.