Pictures 4 Boston Manufacturing Company, Waltham Massachusetts

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Boston Manufacturing Company, Waltham Massachusetts 1979 WHEELPIT AREA OF 1814 MILL WHERE JACOB PERKINS BREASTWHEEL WAS INSTALLED AND CONTROLLED BY PAUL MOODY FLYBALL GOVERNOR, LOOKING NORTH, WITH WEST (UPSTREAM) WALL AT LEFT. EXTRA HEAVY LONGITUDINAL BEAMS ORIGINALLY SPANNED WHEELPIT AREA WITHOUT INTERNAL SUPPORTS (METAL COLUMNS IN PHOTO ARE A RECENT ADDITION). EVIDENCE OF HEADRACE ENTRANCE ARCH HAS BEEN OBLITERATED BY CONCRETE RETAINING WALL AT REAR.
1979 WHEELPIT AREA OF 1814 MILL WHERE JACOB PERKINS BREASTWHEEL WAS INSTALLED AND CONTROLLED BY PAUL MOODY FLYBALL GOVERNOR, LOOKING NORTH, WITH WEST (UPSTREAM) WALL AT LEFT. EXTRA HEAVY LONGITUDINAL BEAMS ORIGINALLY SPANNED WHEELPIT AREA WITHOUT INTERNAL SUPPORTS (METAL COLUMNS IN PHOTO ARE A RECENT ADDITION). EVIDENCE OF HEADRACE ENTRANCE ARCH HAS BEEN OBLITERATED BY CONCRETE RETAINING WALL AT REAR.

Boston Manufacturing Company, Waltham Massachusetts 1979 WHEELPIT AREA LOOKING SOUTHWEST, WITH TAILRACE ENTRANCE ARCH BELOW SLAB, IN FOUNDATION WALL AT LEFT; ANOTHER VIEW OF THE LONGITUDINAL BEAMS SPANNING WHEELPIT.
1979 WHEELPIT AREA LOOKING SOUTHWEST, WITH TAILRACE ENTRANCE ARCH BELOW SLAB, IN FOUNDATION WALL AT LEFT; ANOTHER VIEW OF THE LONGITUDINAL BEAMS SPANNING WHEELPIT.

Boston Manufacturing Company, Waltham Massachusetts 1979 NON-SLOW BURN CONSTRUCTION DETAIL, SECOND FLOOR OF 1816 MILL LOOKING WEST-SOUTHWEST; MOST FLOORS IN THE 1814 AND 1816 MILLS HAD ORIGINAL FLOORING REPLACED WITH SLOW BURN CONSTRUCTION.
1979 NON-SLOW BURN CONSTRUCTION DETAIL, SECOND FLOOR OF 1816 MILL LOOKING WEST-SOUTHWEST; MOST FLOORS IN THE 1814 AND 1816 MILLS HAD ORIGINAL FLOORING REPLACED WITH SLOW BURN CONSTRUCTION.

Boston Manufacturing Company, Waltham Massachusetts 1979 DETAIL OF SLOW BURN CONSTRUCTION IN 1852 WING.
1979 DETAIL OF SLOW BURN CONSTRUCTION IN 1852 WING.

Boston Manufacturing Company, Waltham Massachusetts 1979 GROUND FLOOR VIEW OF NORTH FOUNDATION WALL AT JUNCTURE OF 1814 MILL AND 1843 CONNECTOR, WITH DOOR LEADING TO 1891 STAIR/ELEVATOR TOWER.
1979 GROUND FLOOR VIEW OF NORTH FOUNDATION WALL AT JUNCTURE OF 1814 MILL AND 1843 CONNECTOR, WITH DOOR LEADING TO 1891 STAIR/ELEVATOR TOWER.

Boston Manufacturing Company, Waltham Massachusetts 1979 GROUND FLOOR VIEW LOOKING EAST ALONG SOUTH WALL OF 1843 CONNECTOR; METAL COLUMNS ARE RECENT ADDITION.
1979 GROUND FLOOR VIEW LOOKING EAST ALONG SOUTH WALL OF 1843 CONNECTOR; METAL COLUMNS ARE RECENT ADDITION.