ipiS 



BETTER FRUIT 



Page 13 



Cause of Carbon Deposits 



iLeutenant G. S. Bryan, goveniiiunt 

 expert, in an article in the February 

 issue of the Journal of the American 

 Society of Naval Engineers, says: 

 "Carbon may exist in a motor oil in 

 two forms: First, as free carbon held 

 in suspension, and, second, in combi- 

 nation with hydrogen, forming the 

 numerous hydro-carbon compounds 

 which go to make up the oil. The 

 f.niount of free carbon in a well-renned 

 oil is very small, and the objectionable 

 carbon deposit is generally due to scime 

 other factor. 



"The conditions attained in the 

 cylinder of internal combustion en- 

 gines that result in the formation of 

 carbon are: First, high temperature, 

 and, second, a limited supply of oxy- 

 gen (air). References have been made 

 to oil 'burning.' This term has been 

 used rather loosely, as strictly speak- 

 ing, 'burning means the combining of 

 the vapors from the oil with the oxy- 

 gen of the air, and does not include 

 simple vaporization of the oil. Unless 

 air is present in excess of that required 

 for the combustion of the gasoline or 

 fuel oil, and usually it is not, the oil 

 cannot really burn. Under the intense 

 heat, however, the inner surface of 

 the oil film will be vigorously afTected, 

 and, in the absence of the air necessary 

 for burning, three things may happen: 

 Case 1. The compounds may volatize 

 with decomposition. Case 2. The com- 

 pounds may decompose with the for- 

 mation of free carbon and hydrogen. 

 Case 3. The compounds may decom- 

 pose with the formation of other 

 hydro-carbon compounds of a ditTcr- 

 ent nature. 



"The products formed in case 1 give 

 no trouble, as being gaseous, they are 

 carried out with the exhaust, whether 

 burned or not. Of the products formed 



Is Your Name 



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Our new catalogue is 

 nearly ready for distribu- 

 tion. 



The "Motion Picture 

 Booklet" may be had for 

 the asking. 



You will be glad to get 

 the regular numbers of the 

 "Yuba Bulletin." 



Fill in the coupon on 

 page 20, send it to The 

 Yuba Construction Com- 

 pany, 4.33 California Street, 

 San Francisco, which in- 

 sures your being up-to-date 

 on the tractor question. 



THE SHOTWELL 

 Box Marking Machine 



This machine patented May 11, 1915. 



Patent No. 113S9S5. 

 Any infiingement will be prosecuted. 



Is designed to print all the stamps required 

 on a box of apples or other fruit at one stroke, 

 in perfect alignment, saving time and labor. 

 The machine prints the box to look as follows: 



125 EXTRA FANCY WINESAP 40LBS.NET JOHN DOE 



WENAICHtE.WASH. 



It eliminates untidiness and unevenness in 

 marking. 



Saves time in picking up five different 

 stamps separately, as all these stamps are 

 placed on a wheel and the entire marking of 

 the box as shown above is done in one move- 

 ment and as quickly as one stamp is put on 

 by the old method. The machine works auto- 

 matically and is self-inking. 



The Shotwell Box Marking Machine is a 

 device that saves labor, does it neatly with 

 dispatch. Made to be attached to any open 

 end press and can be adjusted to mark any 

 standard fruit box of any variety, apples, 

 pears, peaches, oranges and lemons, etc. 



It is made of malleable iron, assembled 

 ready for use. 



With each machine is included, without 

 extra charge, eighteen number stamps, three 

 grade stamps, one net weight stamp, one two- 

 line grower's address stamp, ten variety 

 stamps and an ink pad. Price, neatly packed 

 ready for shipment, $15.00, f.o.b. Wenatchee, 

 Washington. 



Ready for delivery July 15. Order promptly, 

 as only a limited number will be assembled 

 this year as orders are taken. For full de- 

 scriptive illustrated catalog and further par- 

 ticulars, write 



Shotwell & Wilmeroth 



WENATCHEE, WASH. 



Northwest Fruit Ladders 



Not excelled by any Fruit Ladder 

 on the market 



We use Air-Dried Spruce Lumber. Rods under each step. 



Price of ladder will surprise you. If your dealer does not sell the 

 Northwest Fruit Ladder write us for prices and circular before buy- 

 ing. You will save money and get the best ladder. 



Also Step Ladders 



Northwest Fence and Supply Co. 



station A, Portland, Oregon 



THE IMPROVED 



HOOD RIVER 



BOX NAILING 



PRESS 



I- Ihr ltt-«l ltr\it-t'4it ilH 



kiiiil for tlir nuiiicv 



oil itu* innrkpt. 



Thr liu-t tliiit Hihm) River 

 muwt'ra hy the hiirirtrpdH use 

 them. Is niir Ix'st ti'sliiiiuiiiiil. 



Ami those whn Imvi- hud ex- 

 perletu'p with the pres^ are ^a\- 

 Wrieil; fur hy llie I'liiiiiiialioii tif 

 hii.x hrutsos It htts nideii in 

 iiiiikliiK ihe Ilood Kiver apple 

 lanuuis. 



If ynu are in the market for a 

 Natlinn Press, ii is to your ad- 

 V(ini4it:e lo InveatiL'nte the 

 H(1<T1» IlIVEK rUKSS and 

 uet t'lir prlcr<. 



■W. G. SNOTV 

 Hood River, Oregon 



WHEN WRITING ADVERTISERS MENTION BETTER FRUIT 



