Manhole cover, comprises rotary shaft operated by tool with C=shaped end for engaging with shaft via C=shaped slot in top side of cover

摘要

#CMT# #/CMT# The cover (1) has a locking mechanism comprising a rotary shaft located in a lower part of the cover and extending at right angles to the latter. A catch protrudes sideways from the shaft beneath the cover. The top end of the shaft terminates inside a cavity beneath the top side of the cover which is accessible via a C-shaped slot (3). The tool (5) for operating the locking mechanism comprises a rod (8) with a handle (9) at one end, the other end being C-shaped so that it can be passed through the slot and engaged with the shaft. #CMT#USE : #/CMT# For manholes. #CMT#ADVANTAGE : #/CMT# None given. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# Figure 1 shows a perspective view of part of the manhole cover. 1 : Manhole cover 3 : C-shaped slot 5 : Tool 8 : Rod 9 : Handle 10 : Catch.