Apparatus for recording the progress of a titration

Claim 1

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. means for measuring a parameter of a test liquid and providing an electrical voltage signal having a predetermined relationship to said parameter, b. supply means for supplying a titrating agent into the test liquid so as to obtain variation of said parameter, c. a recording device of the type having a recording medium, a recording member for making records thereon, and first and second driving means for mutually displacing said record medium and said record member along respective co-ordinate axes, said first driving means including means for controlling said supply means so as to supply an amount of titrating agent as a predetermined function of said mutual displacement provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit for providing a compensating voltage signal changing substantially proportional with respect to the total period of time in which the said circuit has been energized during the titration procedure, said second driving means including a servomotor electrically connected to and controlled by said electrical circuit in such a manner that said mutual displacement along a second of said co-ordinate axes takes place as a predetermined function of the total time in which said electrical circuit has been energized, and e. a controller device for receiving said measuring and compensating signals and adapted to energize and de-energize at least one of said driving means so as to maintain the sum of said measuring and compensating voltage signals substantially constant.

Claim 2

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. means for measuring a parameter of a test liquid and providing an electrical voltage signal having a predetermined relationship to said parameter, b. supply means for supplying a titrating agent into the test liquid so as to obtain variation of said parameter, c. a recording device of the type having a recording medium, a recording member for making records thereon, and first and second driving means for mutually displacing said record medium and said record member along respective co-ordinate axes, said first driving means including means for controlling said supply means so as to supply an amount of titrating agent as a predetermined function of said mutual displacement provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit for providing a compensating voltage signal changing substantially proportional with respect to the total period of time in which the said circuit has been energized during the titration procedure, said second driving means including a servomotor electrically connected to and controlled by said electrical circuit in such a manner that said mutual displacement along a second of said co-ordinate axes takes place as a predetermined function of the total time in which said electrical circuit has been energized, and e. a controller device for receiving said measuring and compensating signals and adapted to energize and de-energize at least one of said driving means so as to maintain the sum of said measuring and compensating voltage signals substantially constant.

Claim 3

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. means for measuring a parameter of a test liquid and providing an electrical voltage signal having a predetermined relationship to said parameter, b. supply means for supplying a titrating agent into the test liquid so as to obtain variation of said parameter, c. a recording device of the type having a recording medium, a recording member for making records thereon, and first and second driving means for mutually displacing said record medium and said record member along respective co-ordinate axes, said first driving means including means for controlling said supply means so as to supply an amount of titrating agent as a predetermined function of said mutual displacement provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit for providing a compensating voltage signal changing substantially proportional with respect to the total period of time in which the said circuit has been energized during the titration procedure, said second driving means including a servomotor electrically connected to and controlled by said electrical circuit in such a manner that said mutual displacement along a second of said co-ordinate axes takes place as a predetermined function of the total time in which said electrical circuit has been energized, and e. a controller device for receiving said measuring and compensating signals and adapted to energize and de-energize at least one of said driving means so as to maintain the sum of said measuring and compensating voltage signals substantially constant.

Claim 4

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. means for measuring a parameter of a test liquid and providing an electrical voltage signal having a predetermined relationship to said parameter, b. supply means for supplying a titrating agent into the test liquid so as to obtain variation of said parameter, c. a recording device of the type having a recording medium, a recording member for making records thereon, and first and second driving means for mutually displacing said record medium and said record member along respective co-ordinate axes, said first driving means including means for controlling said supply means so as to supply an amount of titrating agent as a predetermined function of said mutual displacement provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit for providing a compensating voltage signal changing substantially proportional with respect to the total period of time in which the said circuit has been energized during the titration procedure, said second driving means including a servomotor electrically connected to and controlled by said electrical circuit in such a manner that said mutual displacement along a second of said co-ordinate axes takes place as a predetermined function of the total time in which said electrical circuit has been energized, and e. a controller device for receiving said measuring and compensating signals and adapted to energize and de-energize at least one of said driving means so as to maintain the sum of said measuring and compensating voltage signals substantially constant.

Claim 12

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. electrochemical electrodes for measuring a parameter of a test liquid and providing a measuring voltage signal, b. supply means for supplying a titrating agent into the test liquid, c. a recording apparatus of the type having a recording medium, a writing member for making visual records therein, and first and second driving means for mutually relative displacing said record medium and said writing member along respective co-ordinate axes, said first driving means being operatively connected to said supply means for supplying into the test liquid an amount of titrating agent substantially proportional to said mutual relative displacement of the record medium and the writing member provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit comprising an electrical current source and an analog integrating device for integrating an electrical signal supplied from said source so as to provide a compensating voltage signal changing substantially proportional with respect to the total time in which electrical signals have been received from said current source by the analog integrating device, said second driving means including a servomotor electrically connected to and controlled by the output of said integrating device whereby said mutual displacement along a second of said co-ordinate axes is performed proportional to the output voltage of the control circuit, and e. a controller device comprising a relay device adapted to simultaneously energizing said first driving means and de-energizing said integrating device and vice versa, said relay device being controlled by the sum of said measuring and compensating signals in such a manner that the relay device is switched over when said sum deviates substantially from a preset value.

Claim 13

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. electrochemical electrodes for measuring a parameter of a test liquid and providing a measuring voltage signal, b. supply means for supplying a titrating agent into the test liquid, c. a recording apparatus of the type having a recording medium, a writing member for making visual records therein, and first and second driving means for mutually relative displacing said record medium and said writing member along respective co-ordinate axes, said first driving means being operatively connected to said supply means for supplying into the test liquid an amount of titrating agent substantially proportional to said mutual relative displacement of the record medium and the writing member provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit comprising an electrical current source and an analog integrating device for integrating an electrical signal supplied from said source so as to provide a compensating voltage signal changing substantially proportional with respect to the total time in which electrical signals have been received from said current source by the analog integrating device, said second driving means including a servomotor electrically connected to and controlled by the output of said integrating device whereby said mutual displacement along a second of said co-ordinate axes is performed proportional to the output voltage of the control circuit, and e. a controller device comprising a relay device adapted to simultaneously energizing said first driving means and de-energizing said integrating device and vice versa, said relay device being controlled by the sum of said measuring and compensating signals in such a manner that the relay device is switched over when said sum deviates substantially from a preset value.

Claim 16

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. means for measuring a parameter of a test liquid and providing an electrical voltage signal having a predetermined relationship to said parameter, b. supply means for supplying a titrating agent into the test liquid so as to obtain variation of said parameter, c. a recording device of the type having a recording medium, a recording member for making records thereon, and first and second driving means for mutually displacing said record medium and said record member along respective co-ordinate axes, said first driving means including means for controlling said supply means so as to supply an amount of titrating agent as a predetermined function of said mutual displacement provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit for providing a compensating voltage signal changing with respect to the total period of time in which the said circuit has been energized during the titration procedure, said second driving means being controlled by said electrical circuit in such a manner that said mutual displacement along a second of said co-ordinate axes takes place as a predetermined functioN of said electrical signal, and e. a controller device for receiving said measuring and compensating signals and adapted to energize and de-energize at least one of said driving means so as to maintain the sum of said measuring and compensating voltage signals substantially constant.

Claim 17

An apparatus for registering the progress of a titration, said apparatus comprising in combination a. means for measuring a parameter of a test liquid and providing an electrical voltage signal having a predetermined relationship to said parameter, b. supply means for supplying a titrating agent into the test liquid so as to obtain variation of said parameter, c. a recording device of the type having a recording medium, a recording member for making records thereon, and first and second driving means for mutually displacing said record medium and said record member along respective co-ordinate axes, said first driving means including means for controlling said supply means so as to supply an amount of titrating agent as a predetermined function of said mutual displacement provided by said first driving means along a first of said co-ordinate axes, d. an electrical circuit for providing a compensating voltage signal changing with respect to the total period of time in which the said circuit has been energized during the titration procedure, said second driving means being controlled by said electrical circuit in such a manner that said mutual displacement along a second of said co-ordinate axes takes place as a predetermined functioN of said electrical signal, and e. a controller device for receiving said measuring and compensating signals and adapted to energize and de-energize at least one of said driving means so as to maintain the sum of said measuring and compensating voltage signals substantially constant.