Weighing apparatus

Claim 1

AN APPARATUS FOR DELIVERING MEASURED QUANTITIES OF MATERIAL BY WEIGHT COMPRISING A FRAME, A HOPPER FOR MATERIAL TO BE WEIGHED SUPPORTED ON SAID FRAME, WEIGH BEAM, MEANS PIVOTALLY SUPPORTING THE WEIGH BEAM ON THE FRAME, A WEIGH PAN ON SAID WEIGH BEAM, MEANS FOR FEEDING MATERIAL IN BULK AT A PREDETERMINED RATE FROM SAID HOPPER TO SAID WEIGH PAN, CONTROL MEANS INCLUDING TIMING DEVICES OPERATIVE AT PREDETERMINED TIMES TO START AND STOP SAID FEEDING OF MATERIAL IN BULK FROM THE HOPPER TO THE WEIGH BAN SO THAT AN APPROXIMATELY PREDETERMINE WEIGHT OF MATERIAL LESS THAT THE CORRECT WEIGHT IS DELIVERED PERIODICALLY INTO THE WEIGH PAN, DRIBBLE MEANS INCLUDING A DRIVING MECHANISM, FOR DRIBBING WEIGHT MAKE-UP MATERIAL INTO THE WEIGH PAN AND CONTROL MEANS FOR SAID DRIBBLE MEANS, WHICH CONTROL MEANS INCLUDES A TIMING DEVICE FOR STARTING DRIBBLING OF WIEGHT MAKE-UP MATERIAL INTO THE WEIGH PAN AT A PREDETERMINED TIME, WEIGH-BEAM SENSITIVE MEANS OPERATIVELY ASSOCIATED WITH THE WEIGH-BEAM SO AS TO BE OPERATED WHEN THE CORRECT WEIGHT OF MATERIAL HAS BEEN DELIVERED TO THE PAN AND SEND A SIGNAL TO SAID DRIVING MECHANISM OF THE DRIBBLE MEANS TO TERMINATE SAID DRIBBLING OF WEIGHT-MAKE-UP MATERIAL INTO THE WEIGH PAN, MEANS FOR GENERATING A REFERENCE SIGNAL AND MEANS RESPONSIVE TO TIME DIFFERENCE BETWEEN THE REFERENCE SIGNAL AND SAID SIGNAL FROM THE WEIGH-BEAM SNESITIVE MEANS AND OPERATIVE, IN ACCORDANCE WITH SAID TIME DIFFERENCES TO ADJUST THE MEAND FEEDING THE BULK MATERIAL TO THE WEIGH PAN SO AS TO MAINTAIN THE BULK WEIGHT CLOSE TO BUT BELOW THE CORRECT WEIGHT.

Claim 2

AN APPARATUS FOR DELIVERING MEASURED QUANTITIES OF MATERIAL BY WEIGHT COMPRISING A FRAME, A HOPPER FOR MATERIAL TO BE WEIGHED SUPPORTED ON SAID FRAME, WEIGH BEAM, MEANS PIVOTALLY SUPPORTING THE WEIGH BEAM ON THE FRAME, A WEIGH PAN ON SAID WEIGH BEAM, MEANS FOR FEEDING MATERIAL IN BULK AT A PREDETERMINED RATE FROM SAID HOPPER TO SAID WEIGH PAN, CONTROL MEANS INCLUDING TIMING DEVICES OPERATIVE AT PREDETERMINED TIMES TO START AND STOP SAID FEEDING OF MATERIAL IN BULK FROM THE HOPPER TO THE WEIGH BAN SO THAT AN APPROXIMATELY PREDETERMINE WEIGHT OF MATERIAL LESS THAT THE CORRECT WEIGHT IS DELIVERED PERIODICALLY INTO THE WEIGH PAN, DRIBBLE MEANS INCLUDING A DRIVING MECHANISM, FOR DRIBBING WEIGHT MAKE-UP MATERIAL INTO THE WEIGH PAN AND CONTROL MEANS FOR SAID DRIBBLE MEANS, WHICH CONTROL MEANS INCLUDES A TIMING DEVICE FOR STARTING DRIBBLING OF WIEGHT MAKE-UP MATERIAL INTO THE WEIGH PAN AT A PREDETERMINED TIME, WEIGH-BEAM SENSITIVE MEANS OPERATIVELY ASSOCIATED WITH THE WEIGH-BEAM SO AS TO BE OPERATED WHEN THE CORRECT WEIGHT OF MATERIAL HAS BEEN DELIVERED TO THE PAN AND SEND A SIGNAL TO SAID DRIVING MECHANISM OF THE DRIBBLE MEANS TO TERMINATE SAID DRIBBLING OF WEIGHT-MAKE-UP MATERIAL INTO THE WEIGH PAN, MEANS FOR GENERATING A REFERENCE SIGNAL AND MEANS RESPONSIVE TO TIME DIFFERENCE BETWEEN THE REFERENCE SIGNAL AND SAID SIGNAL FROM THE WEIGH-BEAM SNESITIVE MEANS AND OPERATIVE, IN ACCORDANCE WITH SAID TIME DIFFERENCES TO ADJUST THE MEAND FEEDING THE BULK MATERIAL TO THE WEIGH PAN SO AS TO MAINTAIN THE BULK WEIGHT CLOSE TO BUT BELOW THE CORRECT WEIGHT.