ratchet

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ratchet

a steplocking device on surgical instruments. As the handles are closed the jaws are also closed and the ratchet holds them in a locked position. The ratchet consists of a notched bar on each handle, the notches facing and overriding when the handles are closed.
References in periodicals archive ?
Based on their framework, a modified viscoelastic-plastic model was proposed in this paper to describe the uniaxial ratcheting behavior of PC under tension-tension cyclic loading.
Because of the ratcheting mechanism the EZ Spanner[TM] enables firefighters to open the most obstructed fire hydrants faster.
The TRI-GEAR(TM) ratcheting instrument line will enable us to take this commitment to performance and customer satisfaction a step further.
The current work aims to study the multiaxial ratcheting behavior of ABS.
They attached a triptycene molecule, which looks like a three-bladed fan, to a helicene molecule, which acts as a ratcheting mechanism.
At last year's show, GearWrench introduced the 4-in-1 QuadBox ratcheting wrench, the hand tool industry's first 5[deg] ratcheting wrench with four different sizes on a single wrench.
The Acumed Ratcheting Compression Plating System features a stand-alone implant consisting of a stainless steel plate span, cannulated and threaded legs, and a patented ratcheting hub.
Ratcheting behavior is a cyclic accumulation of inelastic deformation occurred in the materials subjected to a cyclic stress loading.
In use, the Xtra-Bits[TM] fit into the magnetized bit driver at the end of the shaft, or alternatively into the ratcheting mechanism, or in the pivoting head.
Also, available with reverse ratcheting technology, these wrenches are offered in both SAE and metric sizes.
Therefore, in this work, based on the experimental observations to the uniaxial time-dependent ratcheting of polyetherimide (PEI) (1), a simple but famous nonlinear viscoelastic model, i.
The new 4-in-1 QuadBox(TM) Ratcheting Wrench offers the enhanced productivity and speed that have made GearWrench tools famous combined with an easy-to-carry size.