Thanks for the photo links, John. I have a #12, well, most of one. ?i¡¯ve been slowly finding parts for It. And, I think i¡¯m down to things in the vicinity of the needle. Your pictures were helpful.?
On Sunday, March 19, 2023, John Lowrey via <john_p_lowrey=
[email protected]> wrote:
Mario & others interested in the comparison of the #12 & D-12 - in an attempt to understand and offer information on the differences between the two, I've put together detailed photos of my #12 and D-12 heads at the following locations:
#12?
D-12?
Chose to post these off-site so I could retain the original large file-size for hi-resolution photos.? Frankly, was a bit surprised at the negligible difference I was able to find between the two heads.? Made me question whether I actually do have one of each.? The only differences I could find between the two heads: (1) stitch length mechanism - the two heads use a slightly different style of rotating block acting on the cam on the lower main shaft which controls the amount of movement of the feed dog rock shaft; (2) the inspection plates on top of the arm are different; (3) face-plates are different.? None of these differences are material.? In all other respects the heads appear identical to me.
Detail about the D-12.? Serial Number - 90547.? Patent dates showing on the slide/oil plate: May 1, 1883; Oct. 13, 1885; Nov. 24, 1885; Sep. 6, 1887; Jul 17, 1888; Jun. 11, 1889. ?"D-12" appears on the column.? Interesting to note that the oil/slide plate (right of the needle) on the D-12 shows the number "12" below the serial number (whereas when you look at a D-9, you see "D-9" stamped on the oil/slide plate).? The D-12 has been disassembled, cleaned and re-built.
Detail about the #12.? Serial Number - 163355.? Patent dates showing on the slide/oil plate:?Sep. 6, 1887; Jul 17, 1888; Jun. 11, 1889. ?"WW" is just barely visible on the column.? No evidence of the number "12" is visible on the column. The oil-slide plate (right of the needle) on the #12 shows the number "12" below the serial number. ? A metal tag showing "L-12-3-1" is riveted to the bed in front of the column. (Note that the #12 head was dropped at some time.? Face plate is cracked, and the head has a replacement hand-wheel from a D-9.? The spool pin on the #12 is also a replacement from a D-9, so it appears smaller than the D-12.) ?The #12 head hasn't been disassembled and cleaned yet.?
Regards,
John
