Patents Represented by Attorney Edward L. Bell

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  • Variable pull off for bobbin thread
    Patent number: 4437421
    Abstract: A variable under thread pull off device in a sewing machine for providing the proper amount of slack in the bobbin thread to effect uniform stitch formation. The device will pull off a varying amount of bobbin thread to correspond to that which is required for each particular bight position of the stitch being set.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: March 20, 1984
    Assignee: The Singer Company
    Inventor: Ralph E. Johnson
  • Drive roll monogrammer
    Patent number: 4437420
    Abstract: A continuous monogrammer utilizing a peripheral frame to support therein a pair of rollers and drive mechanism therefor to transport a continuous strip of material laterally beneath the sewing machine needle. A bridge straddles the rollers and is slidingly supported on a pair of shafts on opposite sides of the peripheral frame. The bridge is affixed to the sewing machine presser bar so as to elevate the frame and rollers thereby. A second drive mechanism is carried by the bridge and provides an operative connection between the bridge and the peripheral frame so as to move the peripheral frame and the work fabric upon which it rests in the longitudinal direction beneath the sewing needle.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: March 20, 1984
    Assignee: The Singer Company
    Inventor: Kenneth M. Johnson
  • Gate bracketing cushioning spring arrangement for a sewing machine
    Patent number: 4436043
    Abstract: Skip stitch mechanism for a sewing machine is provided with a coiled cushioning spring which mounts on the upper arm of a movable gate, and limits upward movement of a needle bar when disconnected from needle bar reciprocating mechanism to provide for a skipped stitch.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: March 13, 1984
    Assignee: The Singer Company
    Inventor: Edilberto Cantada
  • Bight and needle positioning control for sewing machines
    Patent number: 4434733
    Abstract: A control for a sewing machine is arranged to enable an operator, utilizing a single input control member, to select the amplitude of side to side motion of a needle bar for pattern sewing, or to dispose the needle bar in defined off-center positions for either straight stitch sewing or for effecting disengagement of the needle bar from driving mechanism.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: March 6, 1984
    Assignee: The Singer Company
    Inventor: William Weisz
  • Anti-spill device for sewing machine bobbin
    Patent number: 4434734
    Abstract: A non-spill bobbin case device having a bobbin thread tension spring and a direct bobbin thread path extending from the bobbin thread tension spring across the bobbin case device spaced from the outer face of a bobbin flange supported in the bobbin case, and having a leaf spring with a first end attached thereto, the second end of which impinges upon the outer face of the bobbin flange. An indirect thread path is established by reeving the bobbin thread through a hook provided on the end of the leaf spring in engagement with the bobbin flange so that upon thread demand, the leaf spring is removed from the bobbin flange to permit free rotation thereof; but when thread demand ceases, the end of the leaf spring comes immediately into contact with the bobbin flange to deter further rotation thereof.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: March 6, 1984
    Assignee: The Singer Company
    Inventor: Angus R. T. Russell
  • Strain controlled sewing machine mount
    Patent number: 4434736
    Abstract: A sewing machine is secured to the platform of a sewing cabinet with a machine connected stud and a wing nut which is threaded on the stud and is permitted to turn only a limited amount so as to prevent excessive force from being applied to the machine.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: March 6, 1984
    Assignee: The Singer Company
    Inventors: Jan Szostak, Albert L. Newman
  • Operation controller for an electronic sewing machine
    Patent number: 4434732
    Abstract: A microcomputer controlled electronic sewing machine wherein the microcomputer operates in two modes of execution: a background mode for performing non-critical functions and an interrupt mode for performing functions dependent on the operational state of the sewing machine.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: March 6, 1984
    Assignee: The Singer Company
    Inventors: Edward A. Salge, Leonard I. Horey
  • Continuous monogrammer
    Patent number: 4434729
    Abstract: A work manipulating mechanism for a sewing machine attachable to the presser bar thereof which utilizes a pair of spaced apart endless belts on a first drive plate to feed an endless quantity of work material through a sewing machine in the formation of an ornamental pattern or monogramming, the first drive plate being shiftable in an orthogonal direction by a second drive plate attachable to the presser bar of a sewing machine. The first drive plate may be shifted by a rack and pinion connection to a stepper motor supported on the second drive plate, and the work material may be shifted by a stepper motor connected to one of a pair of shafts carrying sprockets encircled by the endless belts in contact with the work material.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: March 6, 1984
    Assignee: The Singer Company
    Inventor: Donald R. Davidson
  • Spool pin holder for a sewing machine
    Patent number: 4433817
    Abstract: A spool pin holder for accommodating deflection of a spool pin wherein a spherical segment adjacent the ends of the spool pin is seated in a socket in a spool pin post adjacent a socket of square profile having grooves extending along the diagonals of the square beyond the square so as to accommodate therein a first pair of leaf springs in a first diagonal on either side of a spool pin end and a second pair of leaf springs in the second diagonal about the spool pin end adjacent the first pair so as to provide a restoring force to the spool pin in response to any disturbing force displacing the same.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 28, 1984
    Assignee: The Singer Company
    Inventor: Philip F. Minalga
  • Motor control system utilizing switched controller
    Patent number: 4430605
    Abstract: A motor control system utilizes a low cost switched controller for provding operator initiated control signals. The controller has therein a pair of switches which together define four possible modes of operation, depending upon operator manipulation of the controller. These four modes cause the system to either stop the motor, decrease the speed of the motor, maintain the speed of the motor constant, or increase the speed of the motor.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: February 7, 1984
    Assignee: The Singer Company
    Inventor: Bruce E. Arnold
  • Feed system for a sewing machine
    Patent number: 4428316
    Abstract: A compact sewing machine feed system utilizing sheet metal parts to reduce inertia, and separate feed and lift cams to simplify replacement for the purpose of optimizing feed characteristics.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: January 31, 1984
    Assignee: The Singer Company
    Inventors: John Patricia, Jan Szostak
  • Loop positioning arrangement for double pointed looper sewing machine
    Patent number: 4428312
    Abstract: A pivotally movable cam having a double pointed looper thereon for seizing thread loops on one side of a sewing needle is formed with raised surfaces to engage the thread on the opposite side of the needle and thereby position the thread loops for looper point seizure.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: January 31, 1984
    Assignee: The Singer Company
    Inventor: Stanley J. Ketterer
  • Sewing machine thread guide with protective guard
    Patent number: 4427165
    Abstract: A plastic guide for thread extending from a supply spool to the sewing instrumentalities of a sewing machine is provided with a metal wear bar to engage thread exiting from an opening in the guide and prevent the thread from cutting a groove in the plastic material of the guide at the edge of the opening.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: January 24, 1984
    Assignee: The Singer Company
    Inventors: Robert H. Larsen, Harold R. Piszczek
  • Adjustable cushioning spring for a sewing machine
    Patent number: 4426943
    Abstract: Skip stitch mechanism for a sewing machine is provided with a coiled needle bar cushioning spring which mounts in axial alignment with the needle bar on the upper arm of a movable gate and which can be adjustably positioned on the gate arm to define a position from which the needle bar may be latched to reciprocating drive means.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: January 24, 1984
    Assignee: The Singer Company
    Inventor: Edilberto Cantada
  • Electric coil assembly
    Patent number: 4424505
    Abstract: A coil assembly has a pair of terminals mounted in blind slots in the small flange of a bobbin. Magnet wire is connected to one terminal, wound on the bobbin and connected to the other terminal. Insulated lead wires are connected to the terminals by crimping and then soldering each terminal. Then the terminals are bent over the coil and the insulated wires are pressed through a slot leading to an opening in the larger flange. A cover encloses the bobbin and snaps over the rim of the large flange to complete the assembly.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: January 3, 1984
    Assignee: The Singer Company
    Inventors: Kenji Yatsushiro, George F. Kuchuris
  • Fabric shearing and heating tool
    Patent number: 4424094
    Abstract: A fabric repairing tool is provided with a cutter which is operable in a one-shot shearing operation to remove a portion of fabric from a folded piece of material held in the tool with a foldable clamp, and is further provided with heating means which is energizable to a controlled temperature effective in a desirable period of time to bond a thermoplastic pad and patch to a damaged fabric.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: January 3, 1984
    Assignee: The Singer Company
    Inventors: Michael Laude, Michael Marra, Corbett W. Stone, Artin G. Vartoukian
  • Needle thread wiping device
    Patent number: 4422397
    Abstract: A needle thread wiping device having a mounting bracket supported beneath the head behind the needle bar. The mounting bracket supports a pair of shafts which extend laterally therefrom towards both sides of the head. A thread wiper assembly may be fastened to one side or to both sides of the mounting bracket by means of a lever which may be affixed to a forwardly located shaft by a set screw. One end of the lever carries a sleeve. A link is carried on the second shaft, the link also carrying a sleeve, both sleeves slidably supporting therein a thread wiper having a hooked end. A back plate is provided having a curved slot supported on the second shaft and having a pivotal connection to the sleeve in the end of the lever. The thread wiper also has a connection to the back plate.
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: December 27, 1983
    Assignee: The Singer Company
    Inventors: Reinhold Papajewski, Lothar Reinfurth
  • Thread handling arrangement with fiber carrying strip and cam
    Patent number: 4422395
    Abstract: A sewing machine is provided with a thread handling device including an elongate rigid member and a strip from which resilient fibers extend outwardly to contact thread passing between the rigid member and strip, and with a thread engaging cam which prevents a premature descent in said device and improperly formed stitches resulting therefrom.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: December 27, 1983
    Assignee: The Singer Company
    Inventor: Donald Rodda
  • Belt retainer guard for sewing machine
    Patent number: 4422396
    Abstract: A sewing machine with a timing belt for transmitting power from a toothed driving pulley to a toothed driven pulley that rotates a loop taker is provided at each pulley on the belt entering side only with a belt guard which guides the belt onto the pulley and prevents teeth on the belt from jumping over teeth on the pulley.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: December 27, 1983
    Assignee: The Singer Company
    Inventors: Jan Szostak, Henry Schaeflern
  • Convertible bed for a sewing machine
    Patent number: 4421043
    Abstract: A free arm of a convertible bed sewing machine is provided with a rear bed extending member which is pivoted on a cover that is fitted over a fixed machine supporting leg but can be readily removed therefrom with the bed extending member to provide space for an embroidery attachment.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: December 20, 1983
    Assignee: The Singer Company
    Inventors: Boleslaw Kornatowski, Kenneth D. Adams