Vertical Conveyors
Model "A"
NOTE: Objects being conveyed are supported on stainless
steel angle flights attached to stainless steel chains 
- For use in transporting rectangular and oval trays, bus boxes and racks of same size at a rate of 6 - 8 per minute.
- For use where there are intermediate stations between bottom and top stations. To serve a number of floors.
- For manual or automatic loading and unloading.
- Ideal for hospitals conveying food trays between floors when a central food preparation is used.
- For use in low volume soiled tray scapping applications.
- Two year warranty with factory installation.
Standard controls furnished with vertical conveyors
- Back switch at rear of conveyor lining, to stop conveyor
if tray or bus box has not been removed.
- Lintel switch, to stop conveyor if any object protrudes beyond lining of conveyor, on ascending conveyors.
- Sill switch, to stop conveyor if any object protrudes
beyond the lining of conveyor, on descending conveyors.
- Automatic override switch at top of shaft.
- Bottom switch, to stop conveyor if tray or bus box
has not exited from shaft, on descending conveyors.
- Each floor has panel with clearing button, emergency
stop button, and indicator light showing conveyor is in
operation.
Optional controls for vertical conveyors
- Floor selector panel, to cause trays on conveyor flights to
stop at designated floor; and indicators showing
conveyor is in operation.
- Knee switch at each floor; allows control of conveyor
without use of hands.
- Header personnel safety switch.
- Optical sensors to pinpoint blockages in system.
Conveyor models-vertical conveyors
MODEL D - Manual feed and unload; descending only.
MODEL U - Manual feed and unload; ascending only.
MODEL R - Manual feed and unload; reversing type.
MODEL DO - Manual feed automatic take-off; descending type.
MODEL UO - Manual feed automatic take-off; ascending type.
MODEL IU - Ascending type with automatic belt feeder.
MODEL ID - Descending type with automatic belt feeder.
MODEL IUI - Ascending type with automatic belt feeder and belt take-off.
MODEL ID1 - Descending type with automatic belt feeder and take-off.
MODEL DU - Duplex type; manual feed and take off.
Specifications
Furnish and install where shown on plans one Model 'A" vertical - conveyor of (ascending, descending, or reversing type), to handle (trays or bus boxes) at the rate of eight per minute. Conveyor shall extend from the floor to the floor and shall have station doors at each floor. Loading and unloading shall be as indicated on Schedule of Conveyors.
Conveyor shall be complete with structural stainless steel frame and guides; all necessary machinery parts; drive; electrical controls; safety
devices; access panels; station doors; and electrical wiring. A
maintenance manual describing operation of the conveyor equipment
and outlining procedures to properly maintain the equipment shall be
furnished to the Owner upon completion of installation.
Not included in the scope of the work on this conveyor is the masonry
shaft; making of floor openings; full-height access doors; floor drain at
bottom of shaft; and the final connection between the electric power
source and the electric panel furnished by the conveyor manufacturer.
Masonry shaft shall not be erected until after completion of installation
of the structural portion of the vertical conveyor, as directed by conveyor
manufacturer.
Vertical conveyor shall be formed with structural steel framework of not
less than 2" x 2" x ?aintgl'e s, with stainless steel horizontal ties on not '
over 36" centers. It shall have removable guides, machinery parts,
electrical controls and safety devices, all pre-wired.
Machinery shall include shafting or ample diameter mounted in precision
sealed-for-life bearings with grease fittings, for future lubrication. Apron
shafts shall be powered through a train of spur gears. Drive shall consist
of a 1% H.P. gearhead motor, 1201208 volt 3 phase with disc type
magnetic brake and integral worm-gear speed reducer mounted on a
rigid base plate. Drive motor shall be located at the top of the conveyor.
Drive shall be protected by mechanical spring overload to automatically
stop the motor if a predetermined drivechain tension is exceeded. A
signal light mounted in selected spot shall indicate when the overload
device has been actuated. All mechanical operations of the conveyor
must permit reversing of the conveyor.
Stainless Steel shafting of ample diameter is to be mounted in precision,
self-aligning pre-lubricated bearings. Sprockets and gears are to have
machined teeth and shall be keyed and set screwed to the shafts. Apron
drive shafts shall be mechanically connected to assure positive and
smooth synchronized movement to the carrying flights. At the bottom of
the conveyor, apron shafts shall be mounted on a floating frame with
stainless steel take-up screws to adjust the chain lengths.
Tray carrying aprons to consist of 112 ga. stainless steel carrying flights I attached to two strands of precision stainless steel roller chain, each
chain having a minimum ultimate strength of 8500 lbs. Carrying flights and shall be guided the entire height of the conveyor.
Conveyor shall be lined on back, front and both sides with 18# ga. ribbed
stainless steel.
Station doors shall bear U.L. 1% hr. 'B' label. Door frames shall be
constructed of #16 ga. stainless steel head and jambs; #I4 ga. stainless
steel sills; and equipped with wall anchors. Doors shall be of hollow
metal construction with #I6 ga. stainless steel exteriors filled with
rockwool acoustical filler. Doors shall be counterweighted and furnished
with fusible links to automatically close door in the event of fire.
Access panels shall be U.L. 'B' rated, and of similar construction to
station doors with insulated hollow metal construction of #16 ga.
stainless steel for doors and frames.
Doors shall be factory assembled and shipped to job for installation in
masonry shaft by general contractor.
Installation shall be by Greitzer Enterprises. A competent agent of the
conveyor manufacturer shall be present at the jobsite for not less than
24 hours after the conveyor has been put into operation to make any
adjustments if necessary, and to instruct the personnel of the Owner in
the proper operation and maintenance of the conveyor.
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