Suspended cradles

A variety of specialized idlers are available. Examples are plastic disk catenary idlers for handling wet corrosive materials two roU idlers, where the roUs are oriented in a vee for lighter duty conveying system and suspended idler supports for severe service. In this last type, three to five idler roUs are linked end-to-end and suspended from conveyor frame stringers to form a catemary that cradles the belt. 

A left thoracotomy is performed through the fifth intercostal space, and the heart is suspended in a pericardial cradle. 

Fig. 19.4 (A) Tanks suitable for fermentation and beer maturation elevation, plan and side elevation. (B) Methods of installing storage tanks, (a) Vertical tanks (b) Strap mounting of suspended horizontal tanks (c) Bottom tank on concrete cradle, upper tank saddled (d) Bottom tanks on legs, upper tanks offset saddled (e) Bottom tanks on jacks, upper tanks interspaced and mounted on centre column (0 Bottom tanks ring mounted and suspended, upper tanks mounted on offset centre columns (g) Ring suspended multi-tier installation.

When maintenance operations take place on bridges or similar inaccessible structures, suspended access cradles or platforms may be used. The failure of access cradles has led to serious injuries and fatalities. There are many reasons for such incidents including ... 

The complete or partial collapse of any scaffold which is more than 5 m in height erected over or adjacent to water, in circumstances such that there would be a risk of drowning to a person falling from the scaffold into the water or the suspension arrangements of any slung or suspended scaffold which causes a working platform or cradle to fall. 

Ropes, chains or slings must not be used to lift or suspend containers unless, at the time of manufacture, provisions were made to include appropriate lifting attachments such as lugs. In the absence of such manufactured lifting attachments, suitable cradles or platforms must be used for lifting. 

Personal suspension equipment is another new term which includes abseiling equipment (but not a suspended scaffold or cradle), and boatswain s chairs... 

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