Singer sewing dating serial
Singer Sewing Machines were first manufactured in 1851.The manufacture dating provided here on our Web site is reproduced from the original Company register number log books.Because we have not been able to locate the log books, serial numbers for the years 1851 to 1870 are not available at this time.Serial numbers on Singer sewing machines manufactured prior to 1900 are numbers only.After 1900, the machine serial numbers have a single or two-letter prefix.
Fortunately, Singer was already planning for their 100th year anniversary with a new sewing machine that was a dramatic departure from the straight stitch machines of that day.
In November 1944 Singer applied for a patent that relates to sewing machines and it has a primary objective to provide an improved sewing machine which will afford better visibility at the stitching point.
The needle-bar and the presser-bar are inclined rearward between eight and sixteen degrees to a vertical plane.
It has been found that if the parts are inclined less; than about eight degrees from vertical, a clear stitching point is not obtained.
It was patented to Singer Manufacturing Company on 5 February 1946. you never saw production flow more smoothly when complex precision parts are made by one company, finished and assembled by another. (Made of die-cast aluminum for light weight and sturdiness) In the photo above the two major Doehler-Jarvis die castings that frame "Singer's new Model 301" have been assembled, then sliced down the middle to show the (Tripod-Control) method.
The inclined needle bar would become known as the "Slant-Needle" but engineering of this new machine would continue and included another patent that improved the balancing of the rotary hook for the purpose of reducing vibration. An imaginary plane of reference, A-B-C, controls the bed casting.