Edwin Harrington, Son & Co.
Illustrated catalog given to Lamar Lyndon ca.1890.  The firm was located at North Fifteenth Street & Pennsylvania Avenue, Philadelphia, Pennsylvania.
Webpage copyright © George Langford 2010
 Machine Tools, ca. 1890 illustrated catalog
Edwin Harrington 25 and 36 inch Drills, pages 74-75
25 AND 36-INCH DRILLS.
(" A " pattern, curved column.)

This style sometimes preferred as possessing greater strength than "B" pattern straight column. Steel spindles, counter-
balanced, has quick return; bored for Morse Twist Drill Taper; lower end fitted with oil reservoir, keeping washers between spindle and sleeve constantly lubricated; table carefully fitted and turns in bracket arm, which raises and lowers and swings on column; is held in central position by steel taper pin when used with boring bar; four section driving cones, back-geared, giving 8 changes of speed to spindles.
Dimensions as follows, in inches:
Location
 25-inch
 36-inch
Drills to center of
25
 36
Diameter of table 22
 27
Diameter of spindle
 1-7/8
 2
Traverse of spindle
 18
 20
Changes of feed, number
 3
 3
Largest diameter driving cone
 13
 15
Width of face 2-3/4
 3-3/16
Longest distance spindle to base 48
 54
Base plate
 40x24
 58x36
Movement, bracket arm on column
 20
 23½
Countershaft pullies 14x3½
 16x3-3/4
Revolutions per minute 200
 200
Shipping weight, lbs
 2,000
 3,500
Price, $
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Boxing for foreign shipment, $
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