. Automotive industries . of thework on this battery of machines is that the conveyorextends over the table, allowing the block to be rolleddirectly into the machine. When a lever is pulled theconveyor drops below the supporting table level and thejig is clamped in place. Chambered Cylinders As the combined diameter of the two valves in thecylinders is larger than the cylinder bore, it is necessaryto chamfer the cylinders for valve clearance at the is done on a six-spindle Defiance machine, whichtakes this cut from the top of the cylinder. When thisoperation is complete the block is m
. Automotive industries . of thework on this battery of machines is that the conveyorextends over the table, allowing the block to be rolleddirectly into the machine. When a lever is pulled theconveyor drops below the supporting table level and thejig is clamped in place. Chambered Cylinders As the combined diameter of the two valves in thecylinders is larger than the cylinder bore, it is necessaryto chamfer the cylinders for valve clearance at the is done on a six-spindle Defiance machine, whichtakes this cut from the top of the cylinder. When thisoperation is complete the block is moved to a water test-ing jig for jacket leaks. The jig contains covers for thecore holes and is so arranged that 45 lb. pressure can beput on the casting to check leakage. The next manufacturing operation is to mill the tap-pet boss, which is done on a Becker miller having acapacity of 45 per day. The location in this case is bythe locating pads and the bottom face. January 18, 1921 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE 75. 7—Rough cylinder boring machine operation. No Mitel; is shown in this machine so the jig C07istructt0nmay be illustrated. It will be noted that it is a tunnel jig with the roller conveyor in the jig so that theroller conveyor is continuous through the machine. The conveyor drops out of the way when the machineis in operation. 8—The finish boring machine. Only two boring operations are performed on this two operations bring the barrels to grinding size. On this machine as well as on the rough boringmachine mill be seen an electric safety stop. The machines arc directly driven and if the regular stopon the machine did not work the current to the motor w >dd be shut off before damage could be done tothe no,chine. 9—The tenter testing fixture. This operation comes after tin■ finish bore and the fixture isclever, the nrm across the top stringing upward, leaving the entire flxtun open for the setting of the cyl-inder block. City pressure, which
Size: 1546px × 1617px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
