GB1237101A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1237101A – Automatic batch weigher
– Google Patents

GB1237101A – Automatic batch weigher
– Google Patents
Automatic batch weigher

Info

Publication number
GB1237101A

GB1237101A
GB35524/68A
GB3552468A
GB1237101A
GB 1237101 A
GB1237101 A
GB 1237101A
GB 35524/68 A
GB35524/68 A
GB 35524/68A
GB 3552468 A
GB3552468 A
GB 3552468A
GB 1237101 A
GB1237101 A
GB 1237101A
Authority
GB
United Kingdom
Prior art keywords
weight
voltage
batch
ingredient
automatic
Prior art date
1967-08-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB35524/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Howe Richardson Scale Co Inc

Original Assignee
Howe Richardson Scale Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1967-08-03
Filing date
1968-07-25
Publication date
1971-06-30

1968-07-25
Application filed by Howe Richardson Scale Co Inc
filed
Critical
Howe Richardson Scale Co Inc

1971-06-30
Publication of GB1237101A
publication
Critical
patent/GB1237101A/en

Status
Expired
legal-status
Critical
Current

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Classifications

G—PHYSICS

G01—MEASURING; TESTING

G01G—WEIGHING

G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups

G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them

G01G19/24—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them using a single weighing apparatus

G01G19/30—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them using a single weighing apparatus having electrical weight-sensitive devices

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING

B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application

B01F35/80—Forming a predetermined ratio of the substances to be mixed

B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise

B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge

G—PHYSICS

G05—CONTROLLING; REGULATING

G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

G05D11/00—Control of flow ratio

G05D11/02—Controlling ratio of two or more flows of fluid or fluent material

G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means

G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components

G05D11/133—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components with discontinuous action

G05D11/134—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components with discontinuous action by sensing the weight of the individual components

Abstract

1,237,101. Batch weighing systems. HOWE RICHARDSON SCALE CO. July 25, 1968 [Aug. 3, 1967], No.35524/68. Heading G1N. In an automatic batch weighing machine, the measuring and control circuitry is so arranged that different functions, such as automatic taring, dribble feeding, allowance for delay in cut-off, over- and under-weight indicator, warning if a selected batch would exceed the maximum load of the scale, and adjustment of batch size while keeping the relative proportions of different ingredients the same, are performed by respective printed circuit modules which can be plugged into and out of a motherboard as required without affecting the remaining parts of the system. Weight sensing. A silicon or resistance strain gauge load cell 101 senses the weight of the weigh hopper 38. The load cell output signal is added to an adjustable zero tare signal and filtered and fed as a positive voltage E1 to all those modules that require it. Automatic taring. An automatic taring module 124 stores in a capacitor 210 a voltage representing the accumulated weight before the start of feeding of a new ingredient and feeds an appropriate negative voltage E2 to all those modules that require it. Weight selection. Voltages representing the desired weight of each ingredient are set on a bank of potentiometers 170, which are sequentially connected into the circuit by a sequencing circuit 156, and fed to a potentiometer 198 which allows adjustment of the batch size without changing the relative proportions of the ingredients. The output signal from potentiometer 198 is fed as a negative voltage E3 to all those modules that require it. Feeding and termination of feeding. As shown in Fig. 1 two ingredients are weighed in turn into a hopper 38 from full flow feeders 24 and 60 respectively and dribble feeders 40 and 62 respectively. The feeders for each ingredient may be arranged side by side to use a common supply hopper. Catch gates 73, 73a, 77, 77a minimize overfeeding. Both feeders for an ingredient are started automatically by the sequencing circuit after the automatic taring module has stored the accumulated weight. A dual circuit comparator module 121 sums the voltages E1, E2 and E3 with an adjustable voltage E4 to determine when the full flow feeder is stopped, subsequent feeding being by the dribble feeder only until the sum of voltages E1, E2, E3 and an adjustable voltage E5 to allow for cut-off delay becomes zero whereupon a relay EP-S is energized to cut-off the dribble feeder. Voltage E5 is set on a bank of potentiometers 170a and may be different for each ingredient if the ingredients have different densities. If dribble feeders are not provided, a comparator module, Fig. 4 (not shown), having only the second summing point (160) may be used. Over- and under-weight indication. A dual comparator module 122 sums the voltages E1, E2 and E3 with an under-weight limit set voltage E7 at junction 140a and with an overweight limit set voltage E8 at junction 160a and stops the automatic operation of the weighing machine if the weight of an ingredient is outside the acceptable range. An alarm light may be provided. Voltages E1, E2 and E3 are also summed in a summing module 123 and their sum is fed to a meter 259. Impossible batch indication. Module 125 sums the selected weight voltage E3 and the automatic taring voltage E2 and operates an alarm 244 if a threshold representing the maximum load of the hopper 38 is exceeded. Resetting and discharge of hopper. When a batch of ingredients has been successfully weighed out a home-stepper relay is energized to cause the system to step through any remaining unused positions in its operation cycle to reset itself ready for the next batch. A discharge relay may be energized at the last step before resetting is finished to open a discharge gate 66.

GB35524/68A
1967-08-03
1968-07-25
Automatic batch weigher

Expired

GB1237101A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US65822967A

1967-08-03
1967-08-03

Publications (1)

Publication Number
Publication Date

GB1237101A
true

GB1237101A
(en)

1971-06-30

Family
ID=24640436
Family Applications (5)

Application Number
Title
Priority Date
Filing Date

GB56846/70A
Expired

GB1237103A
(en)