cumulative recorder
Datecirca 1960
Inventory Number1999-1-0086
ClassificationCumulative Recorder
Subject
Cultural Region
Place of Origin
Dimensions17.5 x 21 x 21 cm (6 7/8 x 8 1/4 x 8 1/4 in.)
Material
Accessoriesroll of paper; instruction manuals
DescriptionRectangular box in which is found a small motor, a roll of paper and a carriage moved left and right by an endless screw. The carriage is equipped with an inscribing device (pen is missing here). The front cover is on hinge and opens vertically. A standard electric cord powers the motor.
On a piece of masking tape on front: " = 1 2/3 min 3 in = 5 min 1 in = 100 respon", giving some indications of the time scale and the number of events inscribed on a section of paper.
On a piece of masking tape on front: " = 1 2/3 min 3 in = 5 min 1 in = 100 respon", giving some indications of the time scale and the number of events inscribed on a section of paper.
Signedon front cover: Scientific Prototype MFG, Corp.
Inscribedon instrument: PSYCHOLOGICAL-MEDICAL ELECTRONICS
FunctionTo record operant responses in a Skinnerian conditioning experiment.
Ralph Gerbrands Company
Date: circa 1960
Accessories: grey power cord; roll of paper; spare pen; cleaning wire; rubber hat (under pens)
Object number: 1999-1-0007a
Ralph Gerbrands Company
Date: circa 1960
Accessories: Spare pen; roll of paper; power cord; cleaning wire; small sponge; gears (2)
Object number: 1999-1-0002
Ralph Gerbrands Company
Date: circa 1950
Accessories: bob hanging by green thread on side; black and red power cord; spare fastening pins in envelope; spare roll of paper
Object number: 1999-1-0004
Ralph Gerbrands Company
Date: circa 1960
Accessories: grey power cord; spare roll of paper
Object number: 1999-1-0008
Ralph Gerbrands Company
Date: circa 1965
Accessories: power cord (attached)
Object number: 1998-1-0012
Ralph Gerbrands Company
Date: circa 1960
Object number: 1999-1-0056
