Henry L. Scott Tensilgraph Scott Testers Tensile Strength Tester For Parts

Henry L. Scott Tensilgraph Scott Testers Tensile Strength Tester For Parts

The Tensilgraph is a mechanical tensile strength and elongation tester manufactured by Henry L. Scott Co. of Providence, Rhode Island, under the Scott Testers brand. It is designed to measure the force required to stretch or break a material sample — such as paper, textile, film, or similar flexible materials — by gripping each end of a specimen in a pair of clamp jaws and applying a controlled tensile load via a lead screw drive mechanism. The resulting force is indicated on a large circular analog dial gauge graduated from 0 to approximately 150 units. This is a vintage instrument, consistent with early-to-mid 20th century production, and is being sold as-is for parts or repair.

Specifications & What's Included

• Brand: Henry L. Scott Co. / Scott Testers
• Model: Tensilgraph (Reg. U.S. Pat. Off. / Patent Pending per dial face)
• Type: Mechanical tensile strength and elongation tester
• Approximate overall dimensions: 31" x 8" x 9"
• Measurement display: Large circular analog dial gauge, graduated 0–150
• Drive mechanism: Central sliding beam with lead screw drive rod
• Sample clamps: Two cast-iron jaw clamps with star-wheel tightening knobs, mounted on sliding beam
• Sample platform: Circular metal tray on right end with chrome knob
• Feet: Four rubber wheel feet for bench stability
• Construction: Cast iron, steel, and brass components
• Country of manufacture: United States (Providence, R.I.)
• Condition of dial crystal: Cracked/shattered in the 40–50 scale range area
• Sold as-is — scale does not work; no accessories included beyond the instrument itself

Applications

The Scott Testers Tensilgraph was a standard instrument for tensile and elongation testing of sheet and strip materials in industrial and laboratory settings. It was commonly used in paper mills, textile manufacturing, packaging production, and quality control labs to measure tensile strength and percent elongation of samples — properties critical to controlling product consistency and meeting material specifications. Henry L. Scott Co. was a well-known Providence, Rhode Island manufacturer of materials testing instruments through the mid-20th century, and the Scott Testers line was used widely in American industry during that era. Today, vintage Tensilgraph instruments are sought by collectors of antique scientific and industrial instruments, as well as by researchers, educators, and museum curators interested in the history of materials testing technology. Functional units can also be of interest to labs working with period equipment or needing a mechanical (non-electronic) tensile reference.