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Drum-Handling Equipment
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Storekeeper 3 & 2 - Manual for watching over inventory and other things needed in a store
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Crane
from which specially designed hooks are suspended at front  and  rear  (figure  13-16C).  The  attachment  is lowered  over  the  drums  until  the  hooks  drop  into position  over  the  drum  rims.  This  attdachment  handles two   filled   drums   at   one   time.   The   third   type   of attachment,  which  is  vertically  operated,  handles  one filled  drum  at  a  time.  (See  figure  1346  D.)  The  fourth type  of  drum-handling  attachment  operates  on  the principle of vacuum. This attachment is not in wide use. This   is   because   of   the   expense   involved   in   the installation  of  this  attachment  and  the  fact  that  once installed the use of the forklift truck is restricted to drum handling  only. CARGO NET SLING The cargo net sling (figure 13-1 7) is made of nylon straps cargo together in a crisscross pattern to form a 12 foot square or 14 foot square net. The four comers of the net have steel rings sewn in for the pickup hoist hooks or lines used to form an apex. In this type of sling no bars are used as supports. The idea being that the net closes about the material being lifted. Cargo  net  slings  are  generally  used  aboard  Combat Logistics   Force   (CLF)   ships   for   underway replenishment  (UNREP)  operations  support.  Pallets  of cargo  can  be  placed  in  the  net  and  transferred  with  a minimum of loss. Some ships use cargo net slings for handling miscellaneous cargo that is placed directly into the net as shown in figure 13-17. ROLLERS, CONVEYORS, AND CHUTES Conditions  may  be  such  that  rollers  conveyors,  or chutes are more effective than mobile equipment or may supplement  mobile  equipment  when  a  deficiency  of mobile  equipment  exists. Rollers Hardwood rollers or pipes may be placed under heavy boxes or skids so that they maybe moved about in a storeroom or vehicle. Two or more rollers are used, depending on the weight of the box. The end of the box toward the direction in which the box is to be moved is raised by a hoist, lever, or other lifting device, and a roller is placed under it. The box is then pushed forward as more rollers are placed in front of it. As the box passes off a roller, the roller is picked up and placed in front of the box. Figure  13-17.—Cargo net sling. Conveyors A conveyor is a device for moving supplies in a fixed  line  of  travel.  Two  basic  types  of  conveyors  have been  adopted  as  standard  for  the  military  departments, the powerdriven belt conveyor and the gravity-type roller  or  wheel  conveyor. The  power-driven  belt  conveyor  consists  of  an endless belt mounted on a frame and driven by a pulley connected to a drive motor. The belt travels over a series of rollers or a sliding bed. The belt conveyor can be used to transport materials over a fixed path of travel up inclines of as much as 25 degrees. The  roller  conveyor  can  be  installed  with  one  end lower than the other to take advantage of gravity. It can also  be  installed  level  and  the  load  pushed  along manually. Several sections can be put together and developed into a continuous system for movement of material.  The  conveyor  can  be  used  on  piers,  in storerooms, or wherever a steady flow of supplies is desired.  A  drop  of  one-half  inch  per  foot  is  usually required to keep an object in motion on the rollers. Figure 13-18 shows their use in clearing the landing area   of   the   receiving   ship   during   underway replenishment.  Folding  stands  maybe  used  when  it  is necessary  to  clear  obstructions  on  the  deck  or  to  pass through  doors.  Accesories  for  horizontal  conveyors include  turntables  and  curved  sections. 13-8

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