Show e PULLING POWER OF HORSES expert experiments me ants in california give interesting results concrete offers least resistance by E B HOUSE colorado agricultural bollage bol college lege fort colllns collins A very interesting experiment has recently been conal concluded eded in california to determine just how much a horse pulls when he draws a ton A good draught team was used for this purpose the horses weighed 1000 pounds each they were hitched to e f 7 A v wi sll X rz N X A 41 on state highway from colorado springs to canon city cal an ordinary farm wagon and pulled a load of pounds over different kinds of roads the wagon was a standard farm wagon with steel axles of equal length wheels 33 38 and 46 inches in diameter and four inch tires A recording dynamometer knowd knori as tile the iowa type was used to register the force of the team tills this instrument makes a record of the resistance si on a strip of paper under a recording pencil and after the test the total pull of the team can be read off in pounds the record of the test Is as follows on a concrete road in excellent condition the total pull on the load was 83 pounds or pounds per ton on a concrete road with three eighth inch surface of oil nod and screenings road in excellent condition the total pull was 1476 pounds or pounds per ton ott on the ordinary macadam road in condition the total pull was pounds or pounds per ton for a graveled road compact and in good condition the total pull was 5 pounds or 75 pounds per ton an earth road firm with one and one half inches of fine loose dust the total pull was pounds or 92 pounds per ton an earth road with mud 4 to 6 inches deep but soil firm underneath the total pull was pounds or pounds per ton on graveled road before the gravel had been compacted but when it was in ordinary loose condition after it had been placed upon the road the total pull was pounds or pounds per ton the above shows very well what great advantages good roads have on tile the hauling properties of a team |