. American engineer and railroad journal . eans of braces. Foiki abt, 1965. AMERICAN ENGINEER AND RAILROAD JOURNAL. IMPROVED PUNCHING MACHINE. The photograph and drawing illustrate a new positive ad-justable stop as used in connection with an improved slidingclutch on a Cincinnati punch. By means of the adjustablestop the machine can be made to stop at either the top or bot-tom of the stroke or at any intermediate point. This is ofspecial advantage for such work as exact center punching, asconsiderable time can be saved by having the punching toolautomatically stop close to the work. The mecha
. American engineer and railroad journal . eans of braces. Foiki abt, 1965. AMERICAN ENGINEER AND RAILROAD JOURNAL. IMPROVED PUNCHING MACHINE. The photograph and drawing illustrate a new positive ad-justable stop as used in connection with an improved slidingclutch on a Cincinnati punch. By means of the adjustablestop the machine can be made to stop at either the top or bot-tom of the stroke or at any intermediate point. This is ofspecial advantage for such work as exact center punching, asconsiderable time can be saved by having the punching toolautomatically stop close to the work. The mechanism which controls this is simple and consistsof a brass cam fastened in the groove of the clutch and heldin place by a bolt whose head fits in the deep slot to the leftof the groove in which the clutch lever lug works. By loosen-ing the nui. on the bolt the cam can be set at any desiredpoint on the circumference. As the cam comes in contact w-iththe lug on the clutch lever, the clutch is thrown out and the A NEW FRANKLIN AIR The accompanying illustration shows one of the air com-pressors recently furnished the Pennsylvania Railroad at Al-toona, Pa. They were designed and built by the Chicago Pneu-matic Tool Company at Franklin, Pa., and belong to what theydesignate as their C. S. C. class of machines, having com-pound steam cylinders and compound air cylinders. They aredesigned to run non-condensing with a boiler pressure of 100lbs. The high and low pressure steam cylinders are 11 and20 ins. in diameter respectively, and air cylinders 11 and 18ins., with a stroke of 24 ins. The capacity of each compressoris 700 cu. ft. of free air at a speed of 100 While graceful in outline, the machine is at the same timemassive and compact. All bearings are of unusually gen-erous proportions, the pressure per sq. in. being so reducedas to avoid any tendency to heating, a feature which willbe appreciated by those who havehad much experience with air com-pressors. The bear
Size: 1733px × 1441px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
