Guards Patents (Class 112/261)
  • Patent number: 8967060
    Abstract: A sewing machine includes a frame portion, a lid member, and a control portion. The lid member is attached to the frame portion such that the lid member can open and close. The control portion is configured to control a movement speed of the lid member depending on an aperture of the lid member.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shinya Fujihara
  • Patent number: 7188572
    Abstract: A safety cover for a sewing machine of the present disclosure includes a transparent guard member shaped so as to cover at least a front side of a sewing needle, a fastening equipment for detachably attaching the guard member to a needle plate on an upper surface of the sewing machine bed.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: March 13, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shinya Fujihara
  • Patent number: 7096808
    Abstract: A protection device for sewing machine includes a presser which has a first end connected to a presser bar and a second end of the presser has a through hole so that the needle reciprocally extends therethrough. A needle cover is connected to a top of the second end of the presser and no gap is defined between the needle cover and the top of the presser. The needle cover protects the user from being hurt by broken needle.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: August 29, 2006
    Inventor: Tseng Hsien Chang
  • Patent number: 6994041
    Abstract: An embroidery sewing machine hoop guard includes a strap held by a handle portion having a grip, a strap attachment wall for attachment of one end of the strap, and a buckle for receiving the other end, allowing the strap to be held on edge in a generally circular position. The strap adjusts to fit within a hoop while allowing adhesive spraying of a flat area of clothing material to be embroidered, protecting from overspray of adhesive, thus avoiding periodic cleaning of the hoop. The hoop guard may be held on any surface within which a spray material or coating is applied to the surface, by gripping with one hand while a spray device is operated by the other hand to spray an area of the surface within the boundary formed by the strap and handle portion. This prevents overspray beyond that area, protecting other elements or surfaces.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: February 7, 2006
    Inventor: Adrianne L. Manson
  • Patent number: 6837172
    Abstract: A needle guard mechanism for sewing machines aims at stabilizing needles during lowering for stitching operation to prevent needle wobbling caused by high speed motion thereby to avoid the needles from breaking or skipping. The needle guard mechanism adopts an independent design to adjust needle lowering and lifting time separately. The mechanism includes a needle guard and a transmission mechanism. The needle guard consists of a movable member, a front needle guard straddled on the movable member and a rear needle guard fastened to the movable member. The transmission mechanism provides a force to drive the movable member to move reciprocally so that the front needle guard swings in the opposite direction against the reciprocal motion thereby it moves close to the rear needle guard to hold the lowering needles steadily to prevent needle wobbling.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: January 4, 2005
    Assignee: Shing Ray Sewing Machine Co., Ltd.
    Inventor: Jui-Jung Chuo
  • Patent number: 6712014
    Abstract: A sewing cartridge includes a cassette body, a hollow needle that can pass through a work cloth, a spool around which a thread to be supplied to the hollow needle is wound, a needle cover that covers at least a tip of the hollow needle, and a coil compression spring that urges the needle cover to a cover position where the needle cover covers the hollow needle.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: March 30, 2004
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshiyuki Mamiya, Yasuhiro Shimizu
  • Publication number: 20020000181
    Abstract: A sewing cartridge includes a cassette body, a hollow needle that can pass through a work cloth, a spool around which a thread to be supplied to the hollow needle is wound, a needle cover that covers at least a tip of the hollow needle, and a coil compression spring that urges the needle cover to a cover position where the needle cover covers the hollow needle.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 3, 2002
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshiyuki Mamiya, Yasuhiro Shimizu
  • Patent number: 5918559
    Abstract: An apparatus for protection from a broken needle of a sewing machine has a needle cover within which a needle of the sewing machine moves vertically. A capturing portion is formed at the lower portion of the needle cover for capturing broken pieces of a needle. The needle cover is removably attached to a presser bar of the sewing machine using a support member. Preferably, a magnet is used to enhance the performance of the protecting apparatus.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: July 6, 1999
    Inventor: Tsutomu Sakino
  • Patent number: 5791273
    Abstract: An apparatus for protection from a broken needle of a sewing machine has a needle cover within which a needle of the sewing machine moves vertically. A capturing portion is formed at the lower portion of the needle cover for capturing broken pieces of a needle. The needle cover is removably attached to a presser bar of the sewing machine using a support member. Preferably, a non-drying adhesive layer is formed on the inner wall surface of the needle cover. Alternatively, a magnet is used to enhance the performance of the protecting apparatus.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: August 11, 1998
    Inventor: Tsutomu Sakino
  • Patent number: 5655471
    Abstract: A thread take-up lever guard in a multi-needle sewing machine provided with a support disposed on the front surface of a head, a plurality of needle bars each having a needle attached to the lower end, and a plurality of thread take-up levers disposed to oppose the needle bars respectively and protruded from the support to be able to oscillate vertically. The thread take-up lever guard prevents a needle thread carried on a selected thread take-up lever from being caught by an adjacent thread take-up lever assuming a standing posture or is tangled with another needle thread carried on the standing thread take-up lever. The thread take-up lever guard comprises a separator disposed on the support such that every adjacent two thread take-up levers may be isolated from each other over a predetermined range of routes along which the take-up levers reciprocate.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: August 12, 1997
    Assignee: Tokai Industrial Sewing Machine Co., Ltd.
    Inventor: Ikuo Tajima
  • Patent number: 5544601
    Abstract: A safety device for an overlock sewing machine comprises: a way of selecting having an operating part located at which a loop cover covers, for selectively setting the operating part to a first mode set-up position to set up a first stitching mode using an auxiliary cloth table or to a second mode set-up position to set up the second stitching mode using a cloth waste cover, a way of contacting having an engaging part that may engage the operating part of the a way of selecting, the way of contacting being movably supported by the looper cover such that the engaging part is positioned in front of the second mode set-up position when the auxiliary cloth table is set to the looper cover, and that the engaging part is positioned in front of the first mode set-up position when the cloth waste cover is set to the looper cover, in the case that the engaging part comes in contact with the operating part, the way of contacting hindering the looper cover from turning toward a stand-up position thereof, and a way of op
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: August 13, 1996
    Assignee: Juki Corporation
    Inventor: Yasushi Baba
  • Patent number: 5520128
    Abstract: A toy embroidery apparatus has a needle mounted movement reciprocally within the housing. An arm is pivotally mounted on the housing for movement between an operational position and a standby position. When the arm is in the operational position, a tubular shroud encloses a tip of the needle as it reciprocates and prevents the arm from pivoting until the tip of the needle is fully retracted within the housing. A drive effects reciprocating movement of a tip of the needle in and out of the housing. A switch selectively energizes the drive. The switch is rotatable between a locked condition wherein the arm is locked in the operational position and the drive is selectively energizable and an unlocked condition wherein the arm is pivotable.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: May 28, 1996
    Inventors: Hugh Rich, Judy Shackelford
  • Patent number: 5458073
    Abstract: In the cylinder-bed type sewing machine of the invention, a cylinder unit is provided. A feed base support, a feed base, and a feed dog which are disposed in the cylinder unit are reciprocally rotated in vertical and lengthwise directions in accordance with movements of a feed lifting rock shaft and a feed lengthwise shaft. The vertical and lengthwise reciprocal movements of the feed base are synthesized so that the feed dog is moved along an arcuate feeding locus. According to the cylinder-bed type sewing machine of the present invention, the peripheral length of the cylinder unit for holding a tubular sewing product which is fitted onto the cylinder unit, and the distance between a throat plate and the left end of the cylinder unit can be reduced as much as possible, and the feed dog can be moved along the arcuate locus. Therefore, a predetermined feeding operation on the sewing product can be conducted surely and smoothly.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: October 17, 1995
    Assignee: Morimoto Mfg. Co., Ltd.
    Inventors: Shuichi Harada, Makoto Hosokawa
  • Patent number: 5438943
    Abstract: A guard device for sewing machine disposed on a table composed of a first or fixed covering for covering over a lower portion of a belt, and a second or movable covering adapted to shield the belt other than that covered by the first covering. The first covering is provided with an open space or opening defined by its side walls and a lid hingedly mounted on a finger or engageable portion of a wall member of the first covering as to be self-opening or self-closing when a head of the sewing machine is in a collapsed position or in an upright position.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: August 8, 1995
    Assignee: Juki Corporation
    Inventors: Shigemasa Kato, Shigeki Okawa, Masafumi Susaki
  • Patent number: 5388540
    Abstract: A safety device for sewing machines such as an overlock sewing machine and the like including a stopper secured to the sewing machine, a lever pivoted to a looper cover, a pin, a spring provided thereon, and engageable members formed on a chip guard cover and an auxiliary bed, respectively. A switch is so mounted on the sewing machine as to render the latter actuated when it is in contact with the looper cover.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: February 14, 1995
    Assignee: JUKI Corporation
    Inventor: Shiro Satoma
  • Patent number: 5233935
    Abstract: A looper throw-out device containing a latch for catching the release lever of the looper throw-out device when the release lever is left in the unlocked position. The latch is mounted on the inside portion of the sewing machine cover. If an operator fails to lock the release lever before sewing, the latch catches the unlocked release lever when the operator attempts to close the sewing machine cover.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: August 10, 1993
    Assignee: Union Special Corporation
    Inventor: Frank F. Winter
  • Patent number: 5158026
    Abstract: A kit assembly for use in combination with sewing machines for purposes of removing portions of stitchable material around which a buttonhole or other desirable design is sewn by the sewing machine. In one embodiment, the kit includes a support assembly, a material removal device positioned within the support assembly, and a driver connected to the material removal device to supply the necessary forces to remove portions of material. The kit assembly may be attached to a sewing machine without requiring any substantial modification thereof and, if properly positioned, will not interfere with sewing operations and the components associated therewith. The kit assembly may be removed or disabled to allow the sewing machine to perform functions other than sewing buttonholes.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: October 27, 1992
    Assignee: Ralph's Industrial Sewing Machine Company
    Inventors: Ralph Badillo, Badillop Paul
  • Patent number: 4735160
    Abstract: A cutting device for a sewing machine is provided with a cutting instrument associated to a cutting zone. The cutting instrument is formed with a blade movable towards the cutting zone. Furthermore, a protective guard is provided with a blade cover surrounding the blade, movable from an inoperative position spaced apart from the cutting zone to a position in front of the cutting zone. The blade and the blade cover are drivable in such a manner that the blade is only movable towards the cutting zone after the blade cover has been moved in front of the cutting zone. In order to reliably position the blade cover in front of the cutting zone prior to the movement of the blade to the cutting zone for performing the cutting operation, a mechanical locking mechanism is provided for the blade, which is only released when the blade cover is positioned in front of the cutting zone. The blade cover is non-positively connected to its drive in order to prevent injuries by the blade cover.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: April 5, 1988
    Inventors: Klaus Hampel, Reinhold Schrudde
  • Patent number: 4706589
    Abstract: A needle thread guide provided at a needle bar frame and located adjacent to the needle entry protects the needle thread from being stuck by the needle when the workplace is fed during button holing. The guide guides the needle thread outwardly when the needle descends, thus the needle thread positioned lower than the needle eye is protected from being stuck by the needle. The guide is associated with the oscillating motion of the needle, but its direction of oscillation is opposite to the direction of needle oscillation, and its amplitude is almost twice the amplitude of the needle.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: November 17, 1987
    Assignee: Tokyo Juki Industrial Co., Ltd.
    Inventor: Takashi Tsukioka
  • Patent number: 4563965
    Abstract: An acoustical shield assembly and mating thread preguide unit include a series of acoustically insulated panels that substantially surround a sewing machine so as to be operative in attenuating any generated noise. A portion of the top panel, including a downwardly extending flange, is hinged to move between an opened position allowing access to the sewing machine and a closed position for mating with the preguide unit. The preguide unit is mounted to the sewing machine by a pair of adjustable mounting rods and includes two face plates spaced apart by means of a pair of spacer posts. Each face plate includes eyelets between the spacer posts for the passage of thread to the sewing machine. When the hinged portion of the top panel is closed, an elongated opening is formed between the downwardly extending flange and the top edge of the adjacent rear side panel of the shield assembly.
    Type: Grant
    Filed: August 2, 1984
    Date of Patent: January 14, 1986
    Assignee: Marvel Specialty Company
    Inventor: Lee W. Gregory
  • Patent number: 4562783
    Abstract: A combination finger guard and needle protector for use on a sewing machine having a reciprocating needle and presser foot. The needle protector includes a bracket which is attached to a support arm of the sewing machine and has an air jet carried thereon. A source of pressurized air is connected to the air jet for cooling the needle during the sewing operation. A substantially U-shaped member is carried adjacent a front end of the bracket partially encircling the reciprocating needle for providing a finger guard for the needle.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: January 7, 1986
    Inventor: Dale McClellan
  • Patent number: 4530683
    Abstract: A device for preventing separation of a belt from a motor pulley comprises a protection cover for covering a pulley attached to the output shaft of a motor, a guide slot formed in the protection cover extending into a predetermined direction, a belt separation preventing plate supported on the side of the motor pulley by a supporting body which passes through the guide slot, and retaining device associated with the supporting body to fix the plate to the protection cover by a spring pressure.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: July 23, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shouzi Kasugai, Tatsuya Sawato
  • Patent number: 4509442
    Abstract: An acoustical shield assembly for an industrial sewing machine includes a plurality of shield components readily movable from operating sound attenuating positions to open positions permitting easy access to a sewing machine. The assembly preferably includes front and face shields pivotally mounted in overlapping relationship. A lower side shield is positionable beneath a sewing plate of a sewing machine and movable to an overlapping relationship with the front shield. A tubular shield is pivotally mounted above and to the rear of the sewing plate. Acoustical material is mounted in top of the tubular shield to dissipate machine generated noise. The assembly may also include a rear shield for partially enclosing the rear and one side of the sewing machine. The rear shield preferably has a top face cooperating in spaced relationship with a top face of the front shield, but defining an opening for passage of thread and the dissipation of heat.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: April 9, 1985
    Assignee: Marvel Specialty Company
    Inventor: Lee W. Gregory
  • Patent number: 4498405
    Abstract: In a double-function sewing machine including a lock stitch mechanism and an overlock switch mechanism, a stitching portion of an overlock stitch mechanism thereof is positioned at the right side of the machine frame as seen from a machine operator and at a front side with respect to a lock stitching free arm of the lock stitch mechanism. A space is provided between the rear end of the needle plate for the overlock stitch mechanism and the front face of the free arm, through which a fabric to be stitched passes.
    Type: Grant
    Filed: February 7, 1983
    Date of Patent: February 12, 1985
    Assignee: Janome Sewing Machine Co., Ltd.
    Inventors: Susumu Hanyu, Yoshikazu Ebata
  • Patent number: 4438714
    Abstract: Two blade members are counter-rotated from a rest position to a cutting position in which radially directed cutting surfaces cooperate to snip a strip of material by a shearing action as the strip of material flows from a sewing machine or other processing machine. The blade members are reversible and are biased against each other to ensure positive cutting. A hinge-like linkage permits an offset between the blade members and power means to increase versatility. The cutting apparatus can include sensing means to permit automatic cutting of a completed workpiece from an excess of a strip of material which is sewn to the workpiece during the manufacture of a garment.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: March 27, 1984
    Assignee: Blue Grass Industries, Inc.
    Inventors: Samuel W. Smith, Harold C. McVey
  • 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
  • Patent number: 4418630
    Abstract: A belt guard lock for a belt guard pivotable on a pivot shaft affixed thereto and supported in a pivot frame attached to the sewing machine table, which guard lock effectively prevents pivoting of the belt guard by a sewing machine operator but may be readily defeated by a suitably authorized maintenance man. The guard lock fits about the pivot shaft affixed to the belt guard and remains therewith, so as to be available for use in any machine to which it is attached. The guard lock is implemented by a collar slidable on the pivot shaft and having a flange thereof which extends between the lower edge of the belt guard and the sewing machine table to prevent rotation of the belt guard. The belt guard lock may be rendered ineffective by loosening a special set screw inpinging on the pivot shaft and sliding along the pivot shaft to a position where the flange thereof is aligned with a slot in the belt guard to accommodate the flange during pivoting motion of the guard.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: December 6, 1983
    Assignee: The Singer Company
    Inventor: Richard P. Graham
  • Patent number: 4328756
    Abstract: A thread tension control system for a sewing machine comprises the following elements arranged in sequence in a path of thread travel extending between the thread supply and needle of a sewing machine, an infinitely variable thread tension control device; a tortuous path thread tension control device; a check spring; and a take-up arm. The tortuous path thread tension control device comprises a generally cylindrical thread tension control post for receiving at least one wrap of thread, the thread tension control post being disposed approximately orthogonal to the path of thread travel. The tension control post is disposed in the path of thread travel between the infinitely variable thread tension control device and in the check spring to effectively multiply the tension provided by the infinitely variable thread tension control device and insulate the same from changes in pressure along the stitch line.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: May 11, 1982
    Inventor: Gene A. Boyd
  • Patent number: 4285293
    Abstract: This disclosure relates to a device that is adapted to individually and simultaneously guard and cool each needle of a sewing machine. The device includes an apertured member that is adjustably secured to the frame of the machine in a position below the work support of the machine. The apertured member is adapted to receive the needle or needles during the lower portion of its stroke. The diameter of the needle receiving aperture or bore provides a camming or guarding surface against which the needle may impinge, in the event that on its downstroke the needle is deflected or bent in any direction away from its recipricatory path. A passageway, formed in the member, allows for the transmission of a cooling medium to the needle receiving bore so as to cool the eye area and point of the needle as it passes therethrough.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: August 25, 1981
    Assignee: Union Special Corporation
    Inventor: Wayne F. Martling
  • Patent number: 4281607
    Abstract: The invention pertains to a cutting apparatus for sewing machines disposed downstream of the machine's sewing zone. The apparatus includes a cutting blade and a protective guard for the blade both of which have independent actuating devices. The actuating devices are effective in moving the guard and blade between one position which provides clearance for the workpieces being advanced along the machine's work surface and another position where they are operatively associated with the workpieces. A timing element is operatively associated with both actuating devices and is effective in causing the protective guard to be moved toward the workpieces prior to movement of the blade.
    Type: Grant
    Filed: August 6, 1980
    Date of Patent: August 4, 1981
    Assignee: Rockwell-Rimoldi S.p.A.
    Inventor: Giancarlo D. Torre
  • Patent number: 4274349
    Abstract: Disclosed is a lightweight, inexpensive toy electric sewing machine made primarily of molded plastic components which are easily assembled with minimum of tools.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: June 23, 1981
    Inventor: John S. Doyel
  • Patent number: 4269127
    Abstract: A trimming device for sewing machines to trim the marginal edge of work fabric by a cooperation of a stationary blade fixed to the end of a projection arm, and a movable blade fixed to a drive arm positioned above the stationary blade. Between the projection arm and the stationary blade, is a gap for permitting the movable blade to move thereinto. The free end of a resilient plate, which is fixed at its base end portion to the projection arm, normally is substantially in the same horizontal plane as the end of the cutting edge of the stationary blade so as to cover and close the gap. The resilient plate is adapted to be contacted by the movable blade as the latter is lowered to be resiliently deflected into the gap and resume its original position as the movable plate is returned upward, thereby preventing the trimmings from coming into the gap.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: May 26, 1981
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Osamu Kamiya
  • Patent number: 4191122
    Abstract: A sewing machine is provided with a safety device which protects an operator's fingers from the needle and includes a ring suspended over the presser foot of the machine. The suspended member is movable by finger pressure applied thereto in any direction and when so moved, completes an electric circuit to shut off the machine.
    Type: Grant
    Filed: May 16, 1979
    Date of Patent: March 4, 1980
    Assignee: The Singer Company
    Inventor: Howard D. Rogers
  • Patent number: 4178865
    Abstract: A finger guard for a sewing machine is disclosed which fastens to the presser bar and protectively encloses a portion of the needle. The finger guard permits an operator to easily remove an arcuately rotatable snap on presser foot without the necessity of disturbing the finger guard.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: December 18, 1979
    Assignee: The Singer Company
    Inventors: Charles R. Odermann, Ralph E. Johnson
  • Patent number: 4150634
    Abstract: A controller to permit a sewing machine operator to control a sewing machine drive motor from control members located in close proximity to the needle bar. Means are provided to permit the operator to select the sewing speed and the needle stop position prior to commencing the sewing process. The operator may thereafter control the sewing process by light finger pressure applied to the control members without attention being distracted from the work feeding area. The operator may suspend the sewing process by removing pressure from the control members. The sewing machine will thereafter stop with the needle bar in the selected position. A reset circuit is provided to prevent the operator from unintentionally actuating the sewing machine drive motor.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: April 24, 1979
    Assignee: The Singer Company
    Inventors: Jack Brown, John A. Herr, Wesley R. Peterson, John W. Wurst
  • Patent number: 4111136
    Abstract: Yarn clamping means for clamping tufting yarn featuring shield means secured to said yarn clamp which is cooperatively associated with the tufting needle means to prevent impalement of the yarn by the tufting needles.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: September 5, 1978
    Assignee: Abram N. Spanel
    Inventors: Abram N. Spanel, P. Frank Eiland, David R. Jacobs
  • Patent number: 4030431
    Abstract: A thread shield, for a sewing machine having means to interrupt needle bar reciprocation and a take-up with a threading slot to an eyelet thereof, to discourage thread escape from the eyelet or double threading of the eyelet by loose, slung around thread. The sewing machine take-up moves in an up and down path from an uppermost position, where thread may be drawn to the eyelet by way of the threading slot, to a lower position where appreciable slack thread forms when the needle bar reciprocation is interrupted. At the position where appreciable slack thread forms, the take-up moves closely adjacent to an upstanding rib which overlaps the entry to the threading slot thus to deter thread loops from reentering the threading slot. The forward surface of the upstanding rib is tapered in a horizontal plane towards the take-up lever to impede thread, which might otherwise move from the eyelet rearwardly down the threading slot to the threading slot entry.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: June 21, 1977
    Assignee: The Singer Company
    Inventors: Adolph Martin, William Joseph Edwards