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, A 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 PAN SO THAT AN APPROXIMATELY PREDETERMINED BULK WEIGHT OF MATERIAL LESS THAN THE CORRECT WEIGHT IS DELIVERED PERIODICALLY INTO THE WEIGH PAN, PRESSURE FLUID LEG MEANS, FOR SAID WEIGH PAN, OPERATIVE DURING FEEDING OF MATERIAL IN BULK INTO THE PAN, TO TAKE THE WEIGHT THEREOF OF THE WEIGHT BEAM, MEANS OPERATIVE WHEN SAID BULK WEIGHT OF MATERIAL HAS BEEN DELIVERED INTO THE PAN TO RENDER SAID LEGS INOPERATIVE SO THAT THE BULK WEIGHT IS APPLIED TO THE WEIGH BEAM, MEANS INCLUDING A DRIVING MECHANISM FOR DRIBBLING WEIGHT MAKE-UP MATERIAL INTO THE WEIGH PAN AND CONTROL MEANS FOR SAID DRIVING MECHANISM, WHICH CONTROL MEANS INCLUDES A TIMING DEVICE FOR STARTING SAID DRIVING MECHANISM AT A PREDETERMINED TIME AND A LOAD-CELL OPERATIVELY CONNECTED TO THE WEIGH BEAM SO THAT IT IS SUBJECTED TO THE LOAD ON THE WEIGH BEAM WHEREBY, WHEN THE CORRECT WEIGHT OF MATERIAL HAS BEAM DELIVERED TO THE PAN, THE LOAD-CELL TERMINATES OPERATION OF SAID DRIVING MECHANISM FOR THE DRIBBLE FEED MEANS.

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, A 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 PAN SO THAT AN APPROXIMATELY PREDETERMINED BULK WEIGHT OF MATERIAL LESS THAN THE CORRECT WEIGHT IS DELIVERED PERIODICALLY INTO THE WEIGH PAN, PRESSURE FLUID LEG MEANS, FOR SAID WEIGH PAN, OPERATIVE DURING FEEDING OF MATERIAL IN BULK INTO THE PAN, TO TAKE THE WEIGHT THEREOF OF THE WEIGHT BEAM, MEANS OPERATIVE WHEN SAID BULK WEIGHT OF MATERIAL HAS BEEN DELIVERED INTO THE PAN TO RENDER SAID LEGS INOPERATIVE SO THAT THE BULK WEIGHT IS APPLIED TO THE WEIGH BEAM, MEANS INCLUDING A DRIVING MECHANISM FOR DRIBBLING WEIGHT MAKE-UP MATERIAL INTO THE WEIGH PAN AND CONTROL MEANS FOR SAID DRIVING MECHANISM, WHICH CONTROL MEANS INCLUDES A TIMING DEVICE FOR STARTING SAID DRIVING MECHANISM AT A PREDETERMINED TIME AND A LOAD-CELL OPERATIVELY CONNECTED TO THE WEIGH BEAM SO THAT IT IS SUBJECTED TO THE LOAD ON THE WEIGH BEAM WHEREBY, WHEN THE CORRECT WEIGHT OF MATERIAL HAS BEAM DELIVERED TO THE PAN, THE LOAD-CELL TERMINATES OPERATION OF SAID DRIVING MECHANISM FOR THE DRIBBLE FEED MEANS.