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Machinery Photo Index
Manufactured/Badged by:
Thor Power Tool Co. / Speedway Mfg. Co.
Aurora, IL

True Manufacturer:
Doerr Electric Corp., Cedarburg, WI
Machine Specifications
Machine Class: Metal Working Machinery
Machine Type: Grinder, Bench
Machine Size: 6"
Submitted By: Matthew Asser
Machine Specifications
Description/Model: 09704B 1/3HP
Date of Manufacturer: 1974
Serial Number: Motor Ref. 40000T J74-2
Last Updated 8/8/2018 11:19:05 AM

Comments:
Doerr branded as Thor. Spark arrestors as found and installed incorrectly. 4.3 amps, 1/3rd HP, 3450 RPM, dual voltage, original paint, all cast aluminium. Motor reference number 40000T J74-2, suggesting a 1974 year of manufacturer.

Photo 1:

Comments: Front: arrestors should be attached by the vertical slot, with the bend at the top.
Source: Me.
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Photo 2:

Comments: Close up of front
Source: Me.
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Photo 3:

Comments: Missing right tool rest and tool rest support.
Source: Me.
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Photo 4:

Comments: Front left
Source: Me.
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Photo 5:

Comments: Motor tag. No S/N engraved.
Source: Me.
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