Ratchet mechanism

A ratchet mechanism suitable for use in a hand tool such as a wrench comprises a cylindrical ratchet wheel 6 having part-cylindrical recesses therein which are engaged by a complementary shaped pawl 3. The pawl is urged into engagement with the wheel by a spring 11 and prevents rotation in one direc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ANTHONY SHANLEY
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAND TOOLS HEATING LIGHTING MANIPULATORS MECHANICAL ENGINEERING PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS THERMAL INSULATION IN GENERAL TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A ratchet mechanism suitable for use in a hand tool such as a wrench comprises a cylindrical ratchet wheel 6 having part-cylindrical recesses therein which are engaged by a complementary shaped pawl 3. The pawl is urged into engagement with the wheel by a spring 11 and prevents rotation in one direction by jamming against a hardened insert 10.