ratchet

(redirected from ratchets)
Also found in: Dictionary, Thesaurus, Medical, Idioms.

ratchet

1. a device in which a toothed rack or wheel is engaged by a pawl to permit motion in one direction only
2. the toothed rack or wheel forming part of such a device

ratchet

[′rach·ət]
(design engineering)
A wheel, usually toothed, operating with a catch or a pawl so as to rotate in only a single direction.
References in periodicals archive ?
Many of the components in the TRI-GEAR(TM) ratchets have been standardized to be used across various styles and sizes making stocking components easier, lowering production costs and allowing for fast assembly and significantly reduced lead times.
Unlike existing reusable ratchets, the Secure-Fast ratchet is new for every procedure, eliminating performance concerns, and can be sterile-packed ready for surgery, thus reducing the risk of surgical-site infection.
Further improving access, the new ratchets feature a precision machined, low-profile head with a recessed reversing lever.
These ratchets are ideal for critical applications where FOD and FME prevention is crucial.
But he says HMRC has now reversed its position in two areas, ratchet share incentives and special rules where private equity backing is mainly in the form of debt.
Using Victrex's PEEK polymer for the readjusting spring and ratchet of its new line of RectuChem pipe and hose couplings, Rectus Apparatebau GmbH of Germany significantly expanded the couplings' application range, reports Victrex.
The device is a novel type of Brownian ratchet, a tiny machine that harnesses the energy of random jiggles to produce a one-way particle flow.
According to the CPSC, the nylon ratchets which control the headrest height can break after repeated use, causing the headrest to collapse.
Table 2 defines these alternatives ratchets and, in column 1, shows the t-statistic of each when it is scaled by expected sales and used in the regression.
Since the launch of the original patented 5[deg] ratcheting wrench, the GearWrench brand has continuously led the industry with breakthroughs in pass-thru ratchets, sockets, screw/nut drivers, pliers, and specialty tools.
MedTorque's TRI-GEAR(TM) ratchets set a new standard in the industry and are available in axial/in-line, t-handle and palm styles and can be customized with color, logos and artwork.
In addition, the press has a reinforced moving bolster for rigidity and stability, fast close jack rams, dual safety ratchets and light curtain in front and back, according to the manufacturer.