The Singer Company

Ssmc Inc.

Thaddeus J Zylbert

Charles R Odermann

William J Edwards

Gerald J Creed

Anthony Giaimo

Herbert T Hurler

Wolf-Dieter Fuhrmann

Fritz Kappertz

Hans Hammer

William M Block

A composite feed dog for a sewing machine comprises a zinc die cast body portion having a toothed surface region covered by a layer of elastomeric material.

Composite feed dog for a sewing machine

A method is disclosed for finlessly pressing sewing machine needles without compromising any predetermined final needle configuration by operating on the needle blank prior to any deformation by pressing step to form in the blank a varying cross-sectional area along its length matching the finished needle cross-sectional area.

Method for pressing finless sewing machine needles

A sewing machine thread guide is provided with a flexible plastic thread entrapping core portion, and a hard core encasing portion having thread supporting grooves in alignment with thread receiving eyelets in the core portion.

Thread guide construction

Opposing plates of a thread tensioning device for use on a lock stitch sewing machine in a thread handling system wherein needle thread is caused to pass between elongate members of a thread holder which meters thread to the looptaker of the machine are formed with recesses through which the thread can fall without restraint to supply thread to the looptaker during the movement thereof from a loop seizing to a cast-off position.

Needle thread tensioning device for a sewing machine

A needle for use in a sewing machine having a one-way needle clamp, in which the needle is formed with a shank having a minor portion adjacent the free extremity which cooperates with the one-way needle clamp to properly orient the sewing needle, and a major portion extending between the minor portion and the blade which includes a reference surface for locating the blade with respect to the sewing machine looptaker.

Sewing needle with two portion shank

A presser foot with a grooved sole plate for use in the formation of buttonholes on a sewing machine is pivotally mounted on a screw with which the foot can be moved laterally relative to the shank to position a groove dividing ridge with respect to a sewing needle.

Buttonhole foot and shank assembly

A sewing machine loop taker is disclosed having a replaceable adjustable hook beak and needle guard fabricated as a integral element in which the dimensional relationships established in fabrication are not influenced by the means for securing or the provisions for adjustment of the element relatively to the loop taker.

Replaceable hook point and needle guard for sewing machine loop taker

A hollow looptaker shaft which has a spindle rotatable therein and which is of a material susceptible to local deformation under pressure is fitted with a steel sleeve that is prevented from rotating relative to the shaft, and a gear for use in rotating the shaft is affixed to the sleeve with a set screw.

Gear attaching arrangement for looptaker drive shaft

A sewing machine bobbin for a vertical axis hook is provided with a top and a bottom flanged section, and a fastener which both holds the sections together and is the driven member of a clutch through which the bobbin may be driven for bobbin winding.

Sewing machine bobbin for a vertical axis hook

A lockstitch sewing machine is provided with an elongate resilient member which is affixed at one end in the machine and extends under the feed dog of the machine for engagement thereby. The resilient member is flexed by the feed dog during downward movement thereof and then acts against bobbin thread pulling it from the bobbin spool. The elongate member relaxes and separates from the bobbin thread during upward movement of the feed dog.

Resilient bobbin thread pull-off member for lockstitch sewing machine

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 bobbin resting on a bobbin case in the vertical axis looptaker of a sewing machine is provided with a slidable plunger which is biased into a position wherein the bobbin is disconnected from the looptaker and can rotate relative thereto. The plunger is depressable to a cam on the plate into a position wherein it is effective to cause the bobbin to be rotated with the looptaker for the winding of thread.

Growing community of inventors

Morris Plains, NJ, United States of America

Thaddeus J Zylbert