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About The Sunday Oregonian. (Portland, Ore.) 1881-current | View Entire Issue (July 27, 1919)
THE SUNDAY OltEGONTAX.- - rORTLAXD. JTTLY 27, 1919. S E L Bigger Loads Pulled Than Can Be Carried. HUGE TONNAGE HAULABLE Average Truck Can Draw Three or Four Times as Much as It , Can Carry, A factor of prime importance in the development of transportation over the highways is the trailer. Unquestionably the trailer has ' come to stay, says W. D. Allbright. manager of the B. F. Goodrich Rubber company, and its use Hi tons, loaded, must climb a 4 per cent grade over an ordinary clay road. The resistance is computed as follows: (1) pound. Road resistance. 100 Der ton for 7 tons. (2 . nttr r.nt trr.de resistance, .t ISO pound, tor each 1 per cent. 600 lbs. 750 lbs. Total 1300 lbs. In other words, it requires nearly 1400 pounds of drawbar" pull to carry the trucks up this incline over a coun try clay road. Compare this condition with that of the level asphalt street, where the total resistance would have amounted to 150 pounds. CARHOUSK IS COMING HERE Watch for Harry Glenden Who Travels in Real Comfort. PET ALUM A, July 26. Harry Glen den, owner of the famous carhouse car Wanderlust." left this week for Oregon, where he will spend three months. He is going up the valley and return via the coast. Glenden's housecar is equipped with electricity, gas and has all the latest conveniences of city homes. He has traveled in the outfit in most every state in the union and has no home, staying at one place for a few months and then starts traveling. Beware of Oil. For the benefit of the hundreds of thousands of new car owners which S PRETTY GOOD LOAD FOR SUCH A LITTLE FELLER! f- ff.'-"- m ""J Day flm and day oat. this) Ford ear. converted into m track, carries a load like this and still la well and nearty. There are 193 boxes In thta load. Some times It carries even more. and importance will multiply as the nation's roads become Improved. So economical has -the trailer proved in many lines of haulage that every op erator of motor trucks should care fully analyze his delivery In view of adopting trailers. From the farmer who hitches a two wheeled gig to the rear of his auto mobile and speeds away with ten cans of milk to make the 3 o'clock train, to the contractor who hauls 40 tons of crushed stone in trailers with one mo tor truck's power, business men every where are realizing that the principle of the trailer is sound. The average well-built truck is able to haul behind it three or four times as much as it can carry. A striking example of the efficiency of the trac tor powers of a motor truck was dem onstrated by an eastern street commis sioner recently who conducted an ex periment to cut down the cost of col lecting and hauling garbage from the city to the disposal plants. Forty Tons to One Track. Regular horse-drawn wagons were used to collect the garbage from the districts, bringing it to a designated place, where the horses were unhitched and the loaded wagons attached to a five-ton truck. A load of four and one half tons of scrap iron was placed in the truck body in order to give trac tion to the driving wheels. The road traveled passed under viaducts, around sharp turns and up steep grades. The total load including the weight of the trailers was 27 tons. The test covered a round trip distance of 22V. miles and resulting in the city purchasing trailers and disposing of more than half of the horses previously used. This case is not exceptional. In De troit a dealer in crushed stone hauls 30 tons regularly with one truck. In Los Angeles recently a trailer-truck transported a 40-ton load over a dis tance of 23 miles; in an Indiana town a two-ton truck pulled a train of six trailers carrying 300 sheep, and in Chicago recently an enormous dynamo weighing 43 tons was hauled by one motor truck. The trailer uses the surplus power of the truck's engine which would be otherwise wasted. . In addition to car rying capacity every truck has draw bar pulling power. If the motor truck operator is not availing himself of the latent power of his truck he is neglect ing a factor which might reduce his transportation requirements by 200 or too per cent. Motor truck operators must bear in mind, points out the Goodrich company, the amount of load which a truck can haul behind it in trailers depends upon thi conditions of the road and grade met with. For instance, a three-ton truck loaded to capacity ascending a 20 per cent grade could hardly haul a single empty trailer behind it. so nearly has its capacity for drawbar pull been reached. But this same three-ton truck spinning along the level street could haul probably 24 or even 30 tons. Many experiments have been con ducted to determine the resistance of fered by various kinds of pavement and road surface to show the effect on the operation of the motor truck. The fol lowing table gives the generally ac cepted results of these investigations: Table of Road Resistance. -Pounds- Per Ton. 20 24 , 25- S5 35- GO 50 75 100 1 50 275-300 this season of the year produces let us say again: Oil is the greatest enemy of India rubber. Mineral oils are not as bad as animal oils or fats, but keep the tires away from all of them. Don't let pools of oil gather on the garage floor, and anyway keep the tires out of oil if you do allow it to gather. CAR THIEVES NOW ACTIVE THIS IS SEASOIf WHEN THET WILI TAKE ANYTHING. Announcing The TEMPLAR The Superfine-Small Car The Car You Have Waited for. The only Moderately Priced Car Built on a Quality Basis . A car that will give you years of continual service, pleasure, economy, and a car that gives pride in ownership. Speedy, powerful on hills, ex tremely quick on the pick-up and easy to handle. Best equipped car on the mar ket today, and no ad will ever do justice to the TEMPLAR. See this marvelous-built car, with valve-in-head motor, long stroke, high speed, counter-balance crank shaft. See this car and test it. Ride in it and feel its qualities and you will buy it. A shipment is due the . 1st. Place your order early if you want a TEMPLAR. The Car of a Lifetime 4- Passenger, $2500 5- Passenger, $2500 Sport Roadster $2700 Wray Motor Car Co. 90 N. BROADWAY L - . ; ; I ; as some make a specialty of stealing these and even tires In use. Two brand new cord tires were removed from the rear wheels of a car, leaving it standing on the rims in front of a lighted theater in New York. The foreign demand for cars Is being taken advantage of by thieves who are doing a very nice export business. It is said about 90 per cent of the cars stolen are exported. A fence for stolen cars has been discovered in Cuba from which port they were exported to other parts of the world. rThlppers should be more particular about the antece dents of any used car offered for ex port. . Slack in Drop Light Cords. As-convenient arrangement for taking up slack in drop light cords is to put the cord on two pulleys placed at con venient locations. The cord should be fastened at two places to pieces of heavy twine, clothes line will do, and then & weight is hung on each end of the line. The cord as suspended from these lines will be Just long enough to hold the lamp off the floor. Spark plug spares are frequently In jured while being carried in the tool box. An excellent method of guarding against this is to slip each plug Into a section of rubber hose, closing each end up with a bit of waste, to prevent the plugs working out. Don't let the car rest on a deflated tire. Better remove the tire or Jack up 'the wheel. Sever Ieave Car, Even In Front of Own Home, Without Some Qood Lock Device. This Is the particular season of year when car stealing is at its height and owners will do well to observe every precaution. If they would display small fraction of the ingeunity shown by the crooks there would be 'a very material reduction of the evil. It is practically impossible to prevent stealing entirely, but there is no gain saying that drivers' and owners' care lessness makes it altogether too easy for even amateurs successfully to en gage in car stealing. Altogether too few cars stolen are recoverd. A fairly, high per cent is credited to the police of Detroit, who, of the 1547 cars so far stolen this year, have recovered 1149. Figures for some of the larger cities for last year on the number of cars stolen and recovered are as follows: Boston, 866, 607; Chicago, 2611, 1954; Cincin nati 348, 291; Cleveland 2076, 1186; San Francisco il22, 10S2. Cars should never be left without some locking device' or with an alarm set 6o that any attempt to steal the car will be immediately recognized by the police. Most cities forbid locking of a car so it cannot be moved in case of fire or other emergency, so do not chain or lock a wire wheel to a lamp post, for instance. One owner. who did that had only the wire wheel to show for his . pains when he came .out. Experience also shows that it is not sufficient to leave a boy -in charge of the car, for the owner's instructions to the boy may be overheard by some one who can pass himself off as the owner if of the same build and descrip tion. Spare tires also should be locked. Material Asphalt , Wood block ................. Smooth brick ................ Poor brick Hard, dry clay or gravel...., Soft macadam .,, Ordinary clay road Country sand road .......... , Sand 3 inches deep........... The effect of grade or incline is de termined mathematically a 1 per ,cent grade requires a 1 per cent pull. For example, a truck with a gross weight of 10 tons, driven up a grade of 6 per cent will require a force of six-tenths of a ton, or 1200 pounds. For each per cent of grade to be encountered a draw bar pull of 1 per cent of 2000 pounds is required, or a drawbar pull of 20 pounds for each ton. When road resist ance an ' resistance due to grade have been computed, they must be added to gether in order to give the total resist ance ofered by the given haulage con dition. Say a 3V4-ton truck, weighing jti NO BLOW WS OUTS Piaxotire TAS EMI - CURti) J pi an n frtx IT3E.LT TO rtrw OR CU.D 95 Puncture Proof NO RIM CUTS (Note the Construction of This Tire) MAXOTIRES stop tube chafing, eliminate tube flinching and strengthen over oaded tires. Pay for themselves In tire repairs and remove all fear of tire trouble. Maxotire Sales & Supply Co. Bdwy. 684. 522 j Wash. St. car more power TP fiiiiir To Control . Excess Oil A special ring for motors that are oil gushers. TJse In the top groove of each, plstoa. Id tbe lower grooves oso M e Q u a t Morris Leak Proof Plstoa Kins, for full com prfioo power. Turn all the gas you buy into power. Make sure that none of it leaks past your piston rings. Make certain all your'gas is compressed and turned into power. You can do it by installing the genuine McQuay-Norris Leak-Proof Piston Rings. a Their exclusive two-piece design insures equal action all around the cylinder walL That's why they are the only piston rings of their kind. There's no such thing as a "leak-proof type" of piston ring. Leak Proof is the trade-marked name of this particular ring. Be sure you get the genuine. They are made in every size and over-size to fit every model and make of motor. Your repair man can get the proper sizes for you promptly from his jobber's complete stock Buy more power for your car. McQUAY-NORRIS MFG. CO, ST. LOUIS, U. S. A. iiiiimniiiimnmiitiiMinuimiiittiniiinin m mm n iti m i ti w.ii iiijiiiimi i tif ntu i mi n n II m I iihii mill 1 1 n Jif rfvj .4, O Toe MARK : $ ZT '-" 51 The City of - r - Goodrich 5 :l -aSfc; Akron. Ohio -air ' y u n a n iMssasigigt&zrnun n a D n a a. a a n a n n The Ace of Earth and Air On earth, the automobile long: ago carried Silvertown su premacy around the world. Then the aeroplane, to ease the jar of landing, enlisted Silvertbwn's flexible, yet sturdy cable-cord body, and lifted its supremacy to the air. On earth, or in the air, Silver town is acknowledged "The Ace of Tires." , , ; You see Silvertown difference the in stant you see how its trim graceful ness adds elegance to a car; You feel Silvertown difference -the in stant you ride on its easy riding resilience. . . You know Silvertown economic differ ence the instant you check its List Price with its More-Mileage Adjust ment. For cord or fabric tires, Goodrich List Prices joined with Goodrich More.- Mileage Adjustment 8,000 miles for Silvertowns; 6,000 miles for Black Safety Treads give you the standard by which a knowing tire user proves up the true value-of tires- . Compare Goodrich Prices and Adjust ment with others, and know why the Goodrich Tire is to-day the talk" of the motoring' world. Bay Goodrich Tires from a Dealer ADJUSTMENT Fabrics, 6,000 M. Cords, 8,000 M. , ' ' ' L. n g BEST IN THE LONG RUN n n a n Q a n a n n a D a o u a o -a a .a D a D a n a a