Name/Title
Rampuri - Spring LockEntry/Object ID
150; Full Code: 150.60.94-KN-NBTags
Rampuri, Knife, FoldersDescription
This artifact is a Modern Rampuri Chaku, featuring a 4.5-inch blade. It represents a specialized branch of North Indian folding mechanics. This specimen utilizes a high-tension external back-spring lock, documenting a design that prioritizes "Impact Certainty"—where the blade is physically incapable of closing without a manual override of the spring tension.
Core Components & Engineering
The Blade (4.5-inch Clip-Point Steel): A single-edged blade with a straight spine and a deep clip-point taper.
Geometry: The clip-point profile is a study in PSI (Pounds per Square Inch) optimization. By lowering the tip, the force of a strike is concentrated into a microscopic surface area.
Locking Tang: The tang features a deep, square-cut notch on the spine. When fully deployed, the lug of the back-spring snaps into this notch with significant force, creating a rigid mechanical bond.
The Hilt (Chased Brass & All-Metal Frame): Constructed with heavy brass scales over a steel internal frame.
Surface Ornamentation: The scales are decorated with rhythmic concentric "eye" motifs, a traditional signature of the Rampur district. The blade is stamped "RAMPUR (U.P.)".
Fish-Tail Pommel: The flared pommel acts as a physical retention stop, ensuring the hand remains locked in position and preventing the handle from slipping during high-pressure piercing maneuvers.
The Mechanism (External Spring-Back Lock):
Operational Logic: A long, tempered steel leaf spring is pinned to the spine of the handle.
Unlocking Process: To close the blade, the user must pull back on the brass tab (the "lever") to lift the spring's lug out of the tang notch.
Deployment: Deployment is manual. Once the blade reaches 180°, the spring automatically "slams" the lock into place.Made/Created
Manufacturer
Bladesmith from RampurDate made
circa 1997Dimensions
Dimension Description
10"Length
4-1/2 inAcquisition
Acquisition Method
PurchasePlace
State/Province
GujaratRegion
Western India
