Lou's Place in Cyberspace
GEISINGER'S "RED MILL" MACHINERY DETAILS.
At the Mill site, each remaining part of the mill machinery was carefully measured and reconstructed using solid modeling in AutoCAD 2000. All remaining wooden structures were also measured and reconstructed. A series of photos I took of the site in 1993 were very important because by 2003, when I decided to make a virtual model of the mill, most of the remaining wood had deteriorated to almost nothing. A local resident, Mrs. Virginia Frehoffer, provided me will "Polaroid" photos of the mill as it was being dismantled in 1959. Those photos provided me the internal wooden framing used for the buildings structure. The equipment shown here was still intact at the site though not in its original position after the rear wall collapsed some time after 1959. The lower large gear mounted vertically was not found but surmised because of the bevel gear located at this point on the drive shaft
The following illustrations, from renderings of the scale model show the machinery in detail.
TURBINE HOUSING AND DRIVE SHAFT
The turbine housing is shown in red. Only about 3 inches of it are protruding above the mud at the site. The shaft centering device, used to align the main shaft coming from the turbine to the upper drive shaft is colored orange. The lower main shaft coupling ("Jaw" coupling) is shown in light blue, and the coupling for the second upper shaft is dark blue.
The above illustration on the left shows the shaft arrangements. The second drive shaft passes through a bushing that was fitted with a grease cup and normally packed with grease, and covered by a little spring loaded door (detail on right). At the time I made the measurements of this device, the small door was missing and is not shown. This bushing was the first shaft support before the shaft terminated with a cone shaped bevel gear shown in teal in the illustration on the right. This gear was the first power take off point to drive a large gear connected to a horizontal shaft leading to the Hurst Frame. This large gear was not found but surmised. The large gear at the top of the shaft was found at the site still mounted to the shaft. (SEE "THE MILLS OF BRODHEADSVILLE" for photos of the "as found" mill site.) The large gear had cogs made of wood, usually Apple, which were inexpensive and easy to repair and replace. If the machinery became jammed the wooden cogs would shear under the load pressure and prevent further damage to additional machinery. To quiet the sound of loose fitting cogs, nails or small wedges were driven into the space between the cog and the gear frame.
After passing through the first power take off gear, the shaft ended in a second coupling shown in light blue. The upper coupling shown in dark blue then connected to a long shaft which carried the power to a second take off gear located on the floor above the turbine. See below.
The second power take off was connected to another bevel gear which drove a shaft on which was a belt pulley wheel. This pulley most likely drove a leather belt which was connected to a wheel and shaft on the third floor. The mechanism on the third floor drove the "Bolter" or sifting machine, the 'Hopper Boy" grain drier, grain blowers and cleaners, and the bag hoist located in the front peak of the building.