The Singer Company

Herbert T Hurler

William J Edwards

Thaddeus J Zylbert

Gerald J Creed

Frank Dudis

A sewing machine bobbin case is provided with a thread tensioning device that includes a pivotally movable arm which is spring biased into a position preventing thread from entering the device during the sewing of materials on the machine, but which is disposable by a finger in a position providing for the introduction of thread into the device in preparation for the performance of a bobbin winding operation.

Thread controlling arrangement for bobbin winding mechanism

A chain stitch conversion throat plate for a lock stitch sewing machine, the throat plate carrying a thread loop retaining pin and a thread stripper device actuated by the up and down motion of the sewing machine feed dog. The thread stripper device includes a block pivotably supporting a wire form having one end for extending beneath the feed dog for up and down motion therewith, and the other end extending adjacent the thread loop retaining pin for stripping the retained loop therefrom on downward motion of the feed dog.

Chain stitch conversion for lock stitch sewing machine

An improved mechanism for producing blind stitches with a household sewing machine, including a removable throat plate having a thread deflecting member reciprocatorily driven into engagement with a loop of thread carried by the loop taker to insure engagement of the loop of thread by a hook needle. The thread deflecting member is driven in timed relation to the rising and falling motion of the feed dog by a cam which is fastened to the feed drive shaft.

Growing community of inventors

Elizabeth, NJ, United States of America

Herbert T Hurler