Abstract: There is disclosed an overlock sewing machine. The overlock sewing machine includes a looper switching unit for selecting an overlocking operative state or overlocking inoperative state, a needle clamp member having a first needle holding hole in which two needles are mounted separately in the manner that the two needles are positioned in parallel and a second needle holding hole positioned slightly eccentrically at the front side of the cloth feeding direction and perpendicular to the cloth feeding direction, whereby eight types of overlocking operations and one type of double-loop stitching operation can be effected.

Abstract: A speed controller for controlling revolution speed of the upper shaft of a cycle sewing machine comprises a first disk shaped stop lever adjustment cam that has a small diameter portion, middle diameter portions and a large diameter portion. The cam is rotatably driven by an upper shaft. The small diameter portion establishes a neutral position at which a first driving clutch for low speed rotation and a second driving clutch for high speed rotation are disengaged from each other. The middle portions establish a position at which the first clutch is connected to a first driving wheel for low speed rotation. The large diameter portion establishes a position at which the second clutch is connected to a second driving wheel for high speed rotation. A first end portion of the large diameter portion is defined by a second cam. The second cam is secured to the first cam by an adjustable device which can vary the circumferential position of the second cam.

Abstract: A pair of first and second working tables which are oppositely disposed and defining a space therebetween. Provided at the first working table is a detector for identifying a thickness of a plain fabric portion from that of a pile fabric portion of a towel cloth. Provided also at the first working table this is a cutting unit spaced from the detector in a predetermined interval for cutting the towel cloth. Provided at the second working table is a base plate on which a clamping unit is mounted for clamping and drawing the towel cloth. Over the space between the first and the second working tables there is provided a towel cloth drawing unit across the towel cloth and movable vertically for drawing the towel cloth from a towel material.

Abstract: A thread end disposal unit in a thread cutting sewing machine has a thread end suction unit including a first suction tube having an open end positioned at the length of the starting end of a needle thread held by a thread end holder. A second suction tube is connected at a base end thereof to a base of the first suction tube via a suction device generating negative pressure for allowing the first suction tube to suck cut lengths of the needle thread. The device includes a Venturi-tube and an air compressor and a container storing the cut lengths as waste thread.

Abstract: An emergency battery monitor is adapted for use with at least one storage battery. The battery has first and second output terminals across which an output voltage is produced, the battery, when in normal operation, exhibiting an output voltage falling within a nominal value range having predetermined maximum and minimum values. The battery has at least one cell which contains a liquid electrolyte. The electrolyte, when the battery is in normal operation, has a predetermined minimum level in the cell. The monitor includes a member associated with the cell, which is electrically conductive when the level of the electrolyte is at least equal to the minimum level and is electrically non-conductive when the level of the electrolyte falls below the minimum level. Integrated circuits coupled to the output terminals and the member produce a first signal designating normal battery operation when the member is conductive and the value of the output voltage falls within the nominal value range.

Abstract: A triple folding device for folding a hem of a towel utilizes four cams respectively driven by a single rotative drive source, and four link mechanisms respectively driven by corresponding cams. A guide ruler secured to a first guide shaft is driven by one of the link mechanisms. A thrust block is connected to and driven by another one of the link mechanisms. An upper presser is secured to a second guide shaft which is driven by yet another link mechanism. Another second thrust block is connected to and driven by yet another link mechanism. A lower presser is positioned under the upper presser. A pressing unit is driven by a second drive unit. A guide ruler is moved vertically and horizontally by the vertical motion of the first guide shaft and the horizontal motion of the first thrust block for guiding a hem of a towel. The lower presser is moved horizontally by a first drive unit to press the hem of the towel.

Abstract: A steam iron press employs first and second members and a lever mechanism connected to the second member and when manually actuated by an operator causing the second member to be moved to any position between a position of maximum separation and a position of engagement with respect to the first member. The second member receives water and converts the water into steam which is expelled through openings therein. A pump connected between the second member and a water reservoir feeds water to the second member. A cam mechanism is connected between the lever mechanism and the pump to only actuate the pump during a predetermined interval t between the instant of time T1 at which the lever mechanism has initiated movement of the second member toward the first member and the instant of time T2 at which an article to be pressed is squeezed between the two surfaces.

Abstract: A steam iron press employs first and second members and a lever mechanism connected to the second member and when manually actuated by an operator causing the second member to be moved to any position between a position of maximum separation and a position of engagement with respect to the first member. The second member receives water and converts the water into steam which is expelled through openings therein. A pump connected between the second member and a water reservoir feeds water to the second member. A cam mechanism is connected between the lever mechanism and the pump to only actuate the pump during a predetermined interval t between the instant of time T1 at which the lever mechanism has initiated movement of the second member toward the first member and the instant of time T2 at which an article to be pressed is squeezed between the two surfaces.

Abstract: A tape feeding device comprises a binder arrangement for bending shape tape so that the bent portion thereof extends longitudinally. The binder includes a first binder for guiding a base of the tape and a second binder for bending the tape in a predetermined shape while guiding a tip end of the tape. A cutting unit is disposed between the first and the second binders to cut the tape. A tape feeding mechanism feeds the tape from the first binder to the second binder after the tape is cut by the cutting unit.

Abstract: A piece of towel material is separate from a long sized towel cloth by cutting off margin portions composed of only warp yarn spaced in a predetermined interval. A plurality of comb teeth are fixedly mounted on a comb tooth fixing shaft. Each comb tooth comprises a base portion and an operative portion formed in L-shaped. the operative portion has a width corresponding to a longitudinal width of the warp yarn of the towel cloth. The comb tooth fixing shaft is positioned under the towel cloth across the longitudinal direction of the towel cloth. The comb tooth fixing shaft is rotated to permit the operative portion of the comb tooth to engage the surface of the towel cloth.

Abstract: The present invention relates to a looper shifting device in an overlock sewing machine having an upper looper and a lower looper and capable of looping the end of the cloth by one needle with use of three threads composed of an upper thread (first thread) in a needle, a second thread in the upper looper, and a third thread in the lower looper. A tip end of a guide passage provided at the upper looper is open to a tip end rear portion of a brade of the upper looper and positioned adjacent to a pore. A horn is retractably inserted in the guide passage. A spreader is defined by the tip end of the horn protruded from the opening and tip end rear portion of the upper looper. There is provided at the side of the upper looper a holding device for holding the base portion of the horn.

Abstract: A steam iron press employs first and second members and a lever mechanism connected to a second member and when manually actuated by an operator causing the second member to be moved to any position between a position of maximum separation and a position of engagement with respect to the first member. The second member receives water and converts the water into steam which is expelled through openings therein. A pump connected between the second member and a water reservoir feeds water to the second member. A cam mechanism is connected between the lever mechanism and the pump to only actuate the pump during a predetermined interval t between the instant of time T1 at which the lever mechanism has initiated movement of the second member towards the first member and the instant of time T2 at which the article to be pressed is to be squeezed between the two surfaces.

Abstract: A head of a sewing machine mounted on a table of the sewing machine can be turned at the rear portion thereof. A belt device is provided at the side of the head for delivering a rotary motion of a driving device to the head. A guard member is fixed to the table for covering a rear portion of a belt of the belt device which is exposed on the table. The guard member has an inclined wall upper portion provided with a notched recess for receiving the belt 7 when the head is turned rearwardly. A cover member is openable and slidable over the notched recess. The cover member is urged by a spring in a direction to be closed.

Abstract: A pair of first and second working tables are oppositely disposed and spaced apart. A detector at the first working table is used to distinguish a thickness of a plain fabric portion from that of a pile fabric portion of a towel cloth. A cutting unit at the first working table is spaced from the detector by a predetermined interval for cutting the towel cloth. A base plate at the second working table on which a clamping unit is mounted for clamping and drawing the towel cloth. A towel cloth drawing unit employing a bar member extends over the space between the first and the second working tables across the upper surface of the towel cloth and is movable vertically for drawing the towel cloth from a towel material. A pneumatic cylinder is disposed on the upper portion of the body. A plurality of correction pieces disposed on the body and urged by the forward actuation of the pneumatic cylinder contact and press the upper surface of the towel cloth thereby correcting bending of the towel cloth.

Abstract: A cloth presser mechanism comprises a cloth presser vertically movably supported by an arm of a sewing machine. A needle bar is vertically movably supported by the arm of the sewing machine and has a needle at the lower end thereof. The mechanism further includes a rack fixed to the needle bar, a pinion rotatably supported by the arm of the sewing machine and engaged with the rack, a cam integral with the pinion, a first link having an end pivotally supported by the arm of the sewing machine and a middle portion connected to a roller which rides on the surface of the cam, and a second link having an end pivotally supported by the cloth presser. The other end of the second link is pivotally connected to the other end of the first link.

Abstract: The bottom plate of a cloth presser supporter is pivotally mounted on a lower end of the supporter adjacent a rear end of the plate. The plate has an L shaped slot, one slot leg being a needle location groove, the other slot leg being a needle thread guide. The plate has a knife receiving groove with a knife mounted therein. A thread holder holds the end of a thread vertically above the plate so that the thread when extended between the held thread end and the first zigzag stitch of the thread does not extend over a corner defined by the intersection of the side wall of one slot leg with the corresponding side wall of the other slot leg.

Abstract: A zig zag sewing machine needle bar gate mounted to accommodate thermal expansion on spaced bearings of which one comprises a spherical bearing arranged in a cylindrical bushing bore and with a spring clip biasing the spherical bearing against the bushing bore to compensate for lost motion.