Also a more zoomed in picture of the factory complex. The row of square holes is where the forge shop was, and the chimneys collapsed (or the bricks were salvaged).

Also see 2015 Satellite Photo

Picture Legend:

1. The newer part along Littleton is a little wider. It was used as offices on the 1st floor, inventory on the 2nd floor, inspection on the 3rd floor, and miscellaneous storage on the 4th floor. It was added between 1912 and 1917. After 1968 the offices moved to the new office building in the upper right.
2. The original 1887 factory building is the two center sections of the building along Littleton (about 250 feet). Factories were narrow, as all grinding wheels were driven by common drive shafts, and a steam engine. There was an aisle down the middle and grinding wheels were rowed up along each side. At the south end was painting, plating, and packing. At the north end, on one of the higher floors, was the cafeteria.
3. Welding Shop. This is where the inlaid blades were welded to the shears.
4. Two-story high boiler room. It originally also had a 2-phase generator. From the beginning in 1887 there were electric motors driving the long drive shafts. After WWII they changed to 3-phase and on a piecemeal basis the motors were removed and rewired. And at some point they started to buy electricity from PSE&G.
5. Forge Shop where the drop hammers were installed in 1906. The same drop forges were in use until Cooper totally vacated the plant in 1979. The holes in the roof are where the furnace chimneys were.
6. Staging area.
7. Peaked roof over outdoor area that you could drive into from the gate on Littleton Avenue.
8. Building A (steel warehouse) and was built mid-1960s as part of Stage One of their expansion. (See Three Up - One To Go! folder.) The continuous annealing furnace and the Wheelabrators that were used to descale the forgings were here.
9. Building B (tool and die shop). The other part of Stage One.
10. In this taller building, and/or elsewhere at the top of the picture, the flashing was stamped off the forgings.
11. New production space inaugurated in December 1967 and is the focus of the Three Up - One To Go! folder. Had grinding, trim presses and heat treating. The vibratory tumbling machines, a.k.a. finishing mills were in here. For an example see Sweco Finishing Mills.
12. The Heinisch Building. Before they had the Maplewood, NJ plant the garden tools were on the upper floors.
13. Heavy wet grinding. There was a space behind this building where the water was filtered and then reused. You will see a patch of concrete behind it that is a different color.
14. Computer room.
15. Along 11th Ave, starting at Littleton Ave, there were a row of buildings that Wiss owned and rented out. I believe they were torn down and incorporated into the parking lot in the 1960s.