Recorder, temperature

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OBJECT TYPE: air/deformation/bimetal
DATE: 1936
ARTIFACT NUMBER: 2004.0123.001

MANUFACTURER: Bacharach Industrial Instrument Co.
MODEL: Tempscribe
LOCATION: Pittsburgh, Pennsylvania, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 4
AKA: N/A
Patents: N/A
General Description: synthetic case & window/ metal chart plate & interior door plate, pen arm, bimetal sensor & mechanism, case hardware, parts/ paper chart, glass bottle of ink

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 14.0 cm
Width: 11.5 cm
Height: 19.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Industrial Technology
Category: Industrial equipment
Sub-Category: N/A

Manufacturer

AKA: Bacharach
Country: United States of America
State/Province: Pennsylvania
City: Pittsburgh

Context

Country: Unknown
State/Province: Unknown
Period: mid 20th century
Canada: Unknown
Function: An instrument used to record on a paper chart temperatures measured through the distortion of a bimetallic sensor.
Technical: Bacharach's Tempscribe is a chart recorder that could be configured in two different ways for two different functions, one being a temperature recorder. It can be converted into a recorder used to measure other phenomena than temperature by replacing the temperature sensing mechanism with an armature & electromagnet to record on-off times of electric motors (see 1971.0049). The temperature recorder has a bimetallic coil sensor consisting of two metals with differential rates of expansion & contraction in response to temperature changes. The coil is attached to the spindle which is attached to the pen arm; small movements of the coil are amplified & transmitted to the pen by means of the spindle & pen arm. A windup clock controls the rotation of the chart.
Area Notes: Unknown

Details

Markings: White lettering on front reads "tempscribe [script]/ white lettering on back reads "BACHARACH/ PITTSBURGH 8, PA., U.S.A./ PAT NO. 2060984"/ green lettering on chart reads "BACHARACH/ INDUSTRIAL INST. CO./ PITTSBURG 8, P.A. U.S.A." / DEG. FAHR./ tempscribe [SCRIPT]/ CHART S-277" & "PRINTED IN U.S.A."
Missing: appears complete
Finish: black exterior/ colourless transparent window/ white chart/ plated metal
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

Bacharach Industrial Instrument Co., Recorder, temperature, after 1936, Artifact no. 2004.0123, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/2004.0123.001/

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