These are maps of the Brakeshoe factory produced by Sanborn insurance. It was drafted in 1925 but was updated until 1951. Their are also various closeups of the maps for more detail.
These are maps of the Brakeshoe factory produced by Sanborn insurance. It was drafted in 1925 but was updated until 1951. Their are also various closeups of the maps for more detail.
The Sand Laboratory at Mahwah regularly tested such characteristics as permiability, green strength, dry strength, effect of binders and moisture in the many types of sand used (Brake Shoe Foundries).
Frank Gannon is taking the first step in making centrifugal casting core with Osborn jolt-rockover molding machine. The sand carefully mixed with core oils and cereal binder is packed tightly into the pattern
Melting pot being lifted from Vibrex shakeout machine,k which removes sand and core from the casting. Dust and fine sand is sucked down through the grating.