126 



ELEVATORS. 



Fifteen manufacturers reported using wood for the manufacture and re- 

 pair of freight and passenger elevators, both hand power and traction, lifts, 

 dumb waiters, etc., and many of them are important industries maintain- 

 ing formidable establishments. In the production of the finished commodity 

 they give Pennsylvania a high standing among the states but in consumption 

 of lumber they report the use of only a little over a million feet, annually, 

 making this industry 35th in the list or 17th from the last. Not many years 

 ago lumber was the most essential material the elevator manufacturers used 

 but generally steel construction began to take the place of wood and proved 

 to be such a practical and desirable substitute that now for power elevators, 

 especially passenger, wood is employed only incidentally for a few minor 

 parts. The sight of the old time wooden passenger elevator car today is 

 an exception, but on the other hand many small freight elevators and dumb 

 waiters are made entirely of wood, the initial cost being much lower than 

 steel. Some are made that are part steel and part wood. The rough lumber 

 demanded for elevator construction is shown in Table 81. Eleven kinds 

 were reported and their principal uses are as follows: 



Car Platforms. 

 Sugar maple. 



PASSENGER ELEVATORS. 



Overhead Machine Platform. 

 Sugar maple. 



Guide Posts. 

 White pine. 

 Longleaf pine. 

 Norway pine. 



Guide Strips. 



Sugar maple. 

 White ash. 



Upper Frames. 

 Sugar maple. 

 Longleaf pine. 

 White ash. 



Enclosures. 



Longleaf pine. 

 White pine. 

 Loblolly pine. 



Gates. 



White oak. 

 Loblolly pine. 



Car Platforms. 

 Sugar maple. 

 Cypress. 

 Longleaf pine. 



FREIGHT ELEVATORS. 



Panel Sides. 



Longleaf pine. 

 Loblolly pine. 

 White oak. 

 Sugar maple. 



Overhead Beam,s. 

 Sugar maple. 

 Longleaf pine. 

 Loblolly pine. 

 White ash. 



Car Beams. 



Sugar maple. 

 White elm. 

 White oak. 

 Norway pine. 



Weight jams. 



Longleaf pine. 

 Sugar maple. 

 White elm. 



Footing Pieces. 

 Longleaf pine. 

 Norway pine. 

 Sugar maple. 

 Cork elm. 



DUMB WAITERS. 



Car Frames. 

 Spruce. 

 Cork elm. 

 Longleaf pine. 

 Sugar maple. 



Shaft Lining. 

 White oak. 

 Hemlock. 

 Chestnut. 

 Loblolly pine. 



