This illustration shows the continuous carburizing furnaces used for case-hardening such parts as transmission gears, rear axle ring gears, etc. The work is pushed through one of these furnaces at regular intervals and requires 12 hours for the complete "cooking" process. After parts are removed, they are quenched in oil or other solutions to harden them.
After the cylinders are bored and reamed to size, the honing machine puts on the final velvet-like finish, so necessary today in the use of high compression motors which demand such. a small clearance between cylinder and piston. Cylinder grinding so commonly used formerly, is now obsolete.
The usual method of finishing a crankshaft bearing is to use a hand lap while the shaft is rotating in a lathe. In the Packard factory the idea illustrated in this picture was originated to hone to size and to correct out-of-roundness and taper on Packard crankshafts - again to insure and assure your customer's investment. Packard has about $60,000 invested in a sufficient quantity of these machines to keep up with present-day production.
This machine is used for testing the form or curve of t'he teeth of transmission and other gears after they have been ground. To have the tooth contour correct in transmission and other spur gears is as important as the unit itself, for long gear life cannot be obtained without a very careful study and check of these important points. Every gear blank and every tooth on the finished gear are not only carefully made, but are manufactured completely in the Packard factory.
This picture illustrates why this title has been awarded the Packard Motor Car Company. Here is a Packard vee-type 8-cylinder motor, designed and built for the United States Tank Corps by Packard for the exact purpose for which it is best suited, ie, propelling a ponderous tank where vibration has no part in specifications nor beauty of line and simplicity in design are discussed in the calculation of the result. Packard has no prejudice about motors.
This picture taken during inspection of Packard Aircraft Division by Bremen fliers - Captain Koehl, Baron Von Huenefeld and Major Fitzmaurice - to whom President Macauley was host. Picture courtesy of Roscoe Stelford.
As far back as the history of vehicles goes, manufacturers have found it necessary to employ high-priced workmen to stripe and finish the product. Striping was just as good and no better than the disposition of the operator. It remained for Packard to invent, design and patent the simple apparatus illustrated in this picture for striping Packard bodies Picture courtesy of Roscoe Stelford.
This illustration shows an operator in the Packard factory using the Packard striping machine. Much more than hard-to-control hands is saved, and again - a better job is accomplished by this ingenious device. Time formerly required to stripe an average body has been cut from 2 hours to 15 minutes.
This is a diagram of the controlled outlet used at the various stations requiring frequent lubrication. Each outlet controls the flow of clean oil to exactly the right quantity to each wearing surface. In addition to being metered accurately, the oil is strained through a bronze screen and also through a pledget of cotton before it is delivered to its destination.
Internal, expanding, self-energizing, three shoe brake used on all four wheels of Packard vehicles. The cam at the top of the photograph spreads the two upper shoes. This action on the upper left shoe which is not anchored to the backing plate forces the lower shoe against the drum.