Page 4 



BETTER FRUIT 



August, IQ20 



o^fiTFORM 



SKETCHED 



■/frv/5ro plfin or 



D fly 15 EVAPORATOR 



ruci. pl irrof^M 



tunnel cars to transfer car, and vice versa. 

 Depth about 2 inches. 



5. Tunnel floor and ceiling slope ^4 inch per 

 foot from fan toward furnace end of tunnel to 

 facilitate moving loaded cars forward. 



6. One side sliding door at side of tunnel 10 

 inches from fan end and a similar door at side 

 of tunnel 6 inches from end of tunnel. Doors 

 to be 7 feet 1 inch high and 6V 2 feet wide and 

 of double thickness T. & G. flooring. 



7. Air return flue 6V 2 feet wide by 1 foot 

 high and 33 feet long above tunnel. Ceiling of 

 tunnel forms floor of this flue. Walls and ceil- 

 ing of flue of T. & G. flooring over 2x4 S-2-S 

 Oregon pine. Fan end of flue connected to air 

 outlet of top vertical discharge fan by sheet 

 metal housing fitted with adjustable sliding 

 door. Opposite or furnace end fitted with 

 adjustable folding door. 



8. Fan. Outlet end of tunnel connected to a 

 stop vertical discharge multivane exhaust fan 

 of such size that its catalog rating is about 

 18,000 cubic feet of air at 300 r.p.m. and 

 'A-inch static pressure, corresponds to a No. 6 

 Sirocco fan or No. 9 Sturtevant multivane ex- 

 haust fan. 



9. Motor. A 7 1 /3 -h.p. motor or engine is 

 needed to operate the fan, which should be 

 fitted with such size pulley as to give about 

 300 r.p.m. to fan. A 23-inch pulley on fan 

 and 6-inch pulley on a motor operating at 1180 

 r.p.m. will give about the desired speed. 



10. Tracks. Transfer tracks through each 

 tunnel door of 8 pounds per yard dry yard 

 rails set in concrete on 4x4-inch ties. Rails 42 

 inches apart. One set 20 feet long and other 

 set 31 feet long, latter connecting with sulphur 

 house. Tracks in tunnel extending between 

 the two sets of transfer tracks of 8 pounds per 

 yard rails set 24 inches apart inside in con- 

 crete on 4xl-inch ties and are 27 inches from 

 walls inside of rails. Rails extend to edge of 

 transfer car pits at each end of tunnel and are 

 20 feet 10 inches long. One set of tracks 24 

 inches apart and 20 feet 10 inches long, 3 feet 

 6 inches (on center) from outer line of shed, 

 placed parallel to tunnel and connecting >\ ith 

 the two transfer tracks which connect through 

 tunnel doors. This track to be continued be- 

 yond the sulphur house transfer track 2 feet 

 beyond end of shed housing the dipping outfit, 

 and connecting with a transfer track 17 feet 

 long by which cars may be transferred from 

 track outside shed to track beside dipper under 

 shed. Connecting dipping outfit and air lock at 

 fan end of tunnel is a 24-inch track 35 feet 

 6 inches long. This track permits loaded cars 

 to be taken to tunnel or sulphur house via air 

 lock and sulphur house transfer track. 



11. Air Locks. A compartment 5M> feet wide, 

 7% feet long and 7 feet high, connecting to 

 door at fan end of tunnel. Side toward dipper 

 to consist of two folding doors, each ZVi feet 

 wide by 7 feet high, inside measurements. The 

 side toward sulphur house to be formed by 

 two folding doors each 2 feet 10 inches wide. 



University evaporator, revised ground plan. 



Walls and ceiling of T. & G. flooring over 

 2x4-inch pine. A similar compartment at door 

 at furnace end of tunnel, but this to be fitted 

 with two folding doors 2 feet 10 inches by 7 

 feet at end and no doors at side. Compartments 

 are used to permit entrance and removal of 

 cars without admission of cold air to tunnel. 



12. Trucks. Twelve ordinary dry yard trucks 

 as used in Fresno County of wooden frame and 

 built to run on 24-inch tracks. Frames 6 feet 

 long to be removed and placed at right angles 

 to usual position so that in the tunnel the 

 frame will extend across the tunnel. Frame to 

 be extended two inches on either side, making 

 total width of frame 6 feet 4 inches. This 

 permits 1 inch clearance on either side in 

 tunnel. A frame of 2x4-inch material 6J/2 inches 

 high to be built up in center of car to act as 

 guide for stacking trays. Four level steel 

 transfer cars, Fresno County pattern, for 

 42-inch tracks. 



13. Observation Windows. Five 12xl2-inch 

 portholes in wall of tunnel, 3 feet from floor 

 and closed with air-tight doors. Portholes to 



be so placed that cars of fruit in tunnel may 

 be easily observed during drying. 



Shed. — 1. Shed 64 feet long by 20 feet wide, 

 8 feet high at eaves. Shingled roof, quarter 

 slope. Roof resting on 6x6-inch stringers on 

 8x8-inch redwood supports, 8 feet 6 inches 

 long, on concrete piers 8 feet on centers. Sides 

 and ends of shed open. Shed so placed that 

 tunnel wall containing air locks is 8 feet from 

 outside line of shed and other wall 5 feet from 

 line of shed. Shed to house tunnel and dip- 

 ping outfit, but not furnace room or sulphur 

 house. Ventilator over dipping outfit 10 feet 

 long and 3 feet high, with roof of same slope 

 as shed roof. 



2. Shed floor 4-inch concrete, surfaced. 



Dipping Outfit (for Prunes or Grapes). 



1. Dipping Tank. Heavy black sheet iron 

 tank 6 feet long by 3 feet wide and IV2 feet 

 deep, set in firebrick furnace fitted with 

 medium size forced blast oil or distillate 

 burner or larger gravity distillate burner. 

 Top of tank 33 inches from floor. Outer wall 



P^L 



ri/ff/VflCC ROOM 

 Cf?035 SECTION 



rURNF\CE ROOM 

 LONGITUDin/lL SECT/OH 



scale or rear 

 ' * ' 4 ' 6 ' i — To 



i" f w 



/.ye KC-TTi-E. 



WNG IT CD/HAL. SETT/OAf 



£ < » u 



yu-rcneo ay *fcwess 



MULTI V A /V d fX/f/fVST 



rnn /N5TflLL»f/on 



r j- — - ac 



Section of more important jarts of evaporator. 



