Do You Still Recall This Classic Tool?

What’s in the Photo
The tool shown is a vintage wooden “handscrew” clamp (often called a wood screw clamp). It features:

• Two solid wooden jaws with a tapered shape for gripping
• Two threaded steel screws that control jaw pressure and alignment
• Wooden handles for comfortable tightening
• Stamped branding and origin marks, including “Jorgensen” and “Made in U.S.A.”

Why This Clamp Design Is So Useful
Unlike many modern clamps that tighten from one point, a handscrew clamp uses two independent screws, which gives you:

• Parallel clamping (even pressure across the jaw)
• Angled clamping (tighten one screw more than the other to hold tapered parts)
• Gentle but strong grip (wood jaws reduce marring on workpieces)

A Quick Background on the Maker and Markings
This style of clamp is associated with historic American toolmaking. According to the information provided:

• The Cincinnati Tool Company was founded in 1877.
• In 1925, it changed its name to the Hargrave Company, operating under that name until 1955.
• A “circled H” on Cincinnati Tool Company tools indicates it was designed by John M. Hargrave (1889–1975).
  These kinds of timeline and maker details are often what make a clamp like this a collectible woodworking piece, not just a shop tool.

How It Works (Simple Explanation)
Think of the clamp as two jaws that can be “tuned” at two points: the top screw and the bottom screw.

• Tightening both screws evenly keeps the jaws parallel.
• Tightening one screw more makes the jaws tilt, letting you clamp angled or irregular shapes securely.

How to Use It (Step-by-Step)

1. Open the jaws by loosening both handles.
2. Position the workpiece between the jaws.
3. Set the angle (if needed):
   • For flat, parallel clamping: tighten both screws evenly.
   • For angled parts: tighten one screw more than the other until the jaws match the part’s angle.
4. Finish tightening until the piece is secure (firm pressure, not crushing).
5. Check alignment—handscrews can hold pieces squarely if you take a moment to balance both screws.

Common Woodworking Uses

• Edge gluing boards (steady, even pressure)
• Holding small assemblies while drilling, sanding, or carving
• Clamping irregular shapes that metal clamps struggle to grip
• Protecting delicate surfaces (wood jaws are naturally “soft” compared to metal)
• Temporary holding tool for layout, fitting, and dry assemblies

What Collectors and Woodworkers Look For
If you’re evaluating or describing a vintage clamp like this, the most important details are:

• Branding and stamps (e.g., Jorgensen, Made in U.S.A.)
• Condition of screw threads (smooth turning, not heavily stripped)
• Jaw integrity (no major cracks or severe warping)
• Original handles (matching wood, securely attached)
• Patina vs. damage: honest wear is normal; structural issues reduce usability

Care Tips to Keep It Working for Decades

• Keep it dry (wood movement and rust are the main enemies)
• Lightly clean and protect the screws (a small amount of oil can help prevent corrosion)
• If the jaws feel rough, a gentle cleaning and optional light waxing can improve feel without removing character
• Store it where it won’t be crushed or bent—handscrews last longest when the jaws stay true

Why Vintage Wooden Handscrews Still Deserve a Place in the Shop
Even with modern clamps available, a vintage handscrew remains valuable because it’s:

• Highly adjustable (parallel or angled clamping)
• Workpiece-friendly (less likely to dent wood)
• Durable and repairable (simple, serviceable design)
• Often tied to American toolmaking history, especially when maker marks and timelines are traceable through stamped details.