Abstract: A hand-held scroll saw having a blade includes a body having a handle provided at the upper portion of the body, a foot plate provided at the lower portion of the body so as to be slid on a workpiece which is to be cut by the saw, a piston provided over the front portion of the plate so as to be moved upwardly and downwardly, and a motor provided between the handle and the plate so as to move the piston up and down. A hung member is removably secured to the sawing blade at the upper end thereof, and a hanger is secured to the piston at the lower end thereof and engaged with the hung member. A U-shaped arm having an upper portion secured to the body and a lower portion located near the lower end of the blade so that the arm does not interfere with the workpiece. A pulled-down member is removably secured to the blade at the lower end thereof, and a pulling-down member is engaged with the pulled-down member.

Abstract: An apparatus for safeguarding an exposed portion of the cutting blade of a joint planer is disclosed. The safeguard apparatus covers the exposed portion of the cutting blade behind the guide surface of the joint planer. The safeguard is pivotally connected to the guide surface, allowing the angle of the safeguard relative to the table to remain constant while the angle of the guide surface relative to the table changes. This safeguard is auxiliary to a main safeguard on the opposite side of the guide surface.

Abstract: A fishing reel includes a drag adjustment mechanism comprising a plurality of drag washers in the form of friction plates mounted on a master gear shaft. The drag washers are urged into contact with a master gear that is selectively connectable to a spool shaft so that the master gear can rotate together with the master gear shaft and can slip relative thereto. A drag adjustment member is mounted on the master gear shaft and is operable to move the master gear shaft to urge the drag washers toward the master gear by pushing a ball bearing and a drag spring washer to thereby cause a drag adjustment. A drag preset member is mounted on the master gear shaft and is moveable along the master gear shaft to urge the drag washers toward the master gear by pushing the drag adjustment member, the ball bearing and the drag spring washer to thereby cause a drag adjustment.

Abstract: In a dust collector, dust and waste materials such as wood chips and shavings are collected in its casing through a dust collecting duct by a dust collecting fan rotated by a motor. The dust and waste materials thus collected are compressed and extruded by an extruding screw which is rotated by the motor, whereby the dust and waste materials can be readily discarded.

Abstract: A water depth measuring device for a fishing reel has a mounting seat integrally provided on an upper portion of a reel body. A main section of the measuring device is integrally formed and includes a watertight compartment housing electrical components such as a sensor, a controller, an indicator, a sound maker, and a power supply. A rotation detection section of the measuring device is provided in a projecting case mounted on the reel body and includes a roller mechanism having a magnet attached thereto. A roller included in the roller mechanism is biased into contact with a fishline wound on the fishing reel to rotate upon cast of the fishline from the fishing reel to cause rotation of the magnet and the generation of a flux signal. The sensor in the main section of the measuring device detects the flux signal and an indication of the length of the fishline cast is displayed on the indicator. The sound maker provides an audible signal indicating the cast of a selected length of fishline.

Abstract: An image position adjusting device for controlling an imaging area in a longitudinal direction of a printing sheet. This position control is made by rotating one of the impression and blanket cylinders with respect to the other. A first intermediate gear is mounted on a shaft extending between the side frames of the printing machine, and a second intermediate gear is engaged with the first intermediate gear and a stationary gear of one of the impression and blanket cylinders. The second intermediate gear is swingable while meshingly moving along the first intermediate gear for rotating the gear of the impression or blanket cylinder. During movement of the second intermediate gear, it is always held between the first intermediate gear and the stationary gear.

Abstract: A sheet feeder in a sheet-fed printing press includes a detector 1 disposed adjacent to a feed portion of a paper feed or transfer cylinder 2 for detecting an improperly fed sheet of paper, and a gripper opening mechanism 6 actuatable for engaging a cam follower 13 to open a gripper 14 to release the improperly fed sheet of paper from the cylinder. A sheet discharge mechanism 16 has a sheet discharge roller 17 movable toward the cylinder for gripping therebetween the released sheet, and a stripper 18 movable toward the cylinder for stripping the improperly fed sheet and discharging it along a paper guide. An actuator 4.5 is connected to the detector for actuating the gripper opening mechanism and moving the sheet discharge roller and the stripper in response to the detection by the detector of the improperly fed sheet of paper.

Abstract: A device for connecting and disconnecting a dampening system B and an inking system A in an offset printing machine. The offset printing machine includes a plate cylinder 7, and the inking system includes an ink applicator roller 10 movable toward and away from the plate cylinder. The ink applicator roller is in rotational contact with an ink delivery roller 19. The ink delivery roller is in rotational contact with an intermediate roller 15 which is movable toward and away from a roller 16 of the dampening system. The ink delivery roller and the intermediate roller are both rotatably supported by a pair of brackets 27,27 pivotally supported to an inking frame 25,25. The ink delivery roller and the intermediate roller are also slidable with respect to the brackets. In accordance with the movement of the ink applicator roller, the ink delivery roller is slidably moved, yet connection and disconnection between the inking and dampening systems is attainable.

Abstract: A gas venting arrangement in a high speed injection molding apparatus such as a high speed die casting machine. The gas venting arrangement includes a gas vent control valve which is closable at an optimum timing and at high speed. This valve closure is achievable by providing an improved combination of a control circuit and a valve driving mechanism. The control circuit is connected to a molten metal sensor and sends a high voltage output drive signal to the valve driving mechanism when the sensor detects a first molten metal or a metal splash. The valve driving mechanism includes an electromagnetic valve connected to a pneumatic source and a pneumatically operated valve connected between the electromagnetic valve and the gas vent control valve. The pneumatically operated valve is also connected to the pneumatic source. The electromagnetic valve performs prompt change-over operation upon receiving the drive signal, and supplies driving pneumatic pressure to the pneumatically operated valve.

Abstract: A double-sided printing machine in which two sides of fed sheets are printed by two adjacent impression cylinders, each with their own plate and blanket cylinders. Thereby, the first impression cylinder acts as a sheet feed cylinder for the second impression cylinder.

Abstract: A joint machine having a fence and a fence position adjusting mechanism. The mechanism adjusts a vertical position and angular orientation of the fence with respect to a pair of fence supporting members upstandingly extending from a base which accommodates therein a cutter. a hand gripper is provided between upper end portions of the fence supporting members. The mechanism includes a pair of fence fixing means. One of the fence fixing means fixes both the vertical position and angular orientation of the fence, whereas the other fixing means fixes the vertical position of the fence.

Abstract: A sheet-fed rotary printing press for printing both the obverse and reverse side of a printing sheet. The printing press is provided with at least one obverse side printing unit including an impression cylinder and a discharge cylinder in contact therewith. The printing press is also provided with a reverse side printing unit in confrontation with the discharge cylinder. The discharge cylinder also functions as an impression cylinder for the reverse side printing.

Abstract: An offset printing machine having a first printing unit where an ordinary offset printing is achievable and a second printing unit where a number printing and perforating operations can be performed. The second printing unit has an impression cylinder independent of an impression cylinder of the first unit. The second unit is pivotally movable in horizontal plane with respect to the first unit. When the first and second units are connected to each other, offset printing process and subsequent numbering process are achieved. When the second unit is pivotted and is disconnected from the first unit, ordinary offset printing machine can be solely performed. A chain delivery section is provided in the first unit so as to transfer the printed sheet to the second unit. Tension control means is provided for controlling tension of the chain. Further, vertical and horizontal position fixing means are provided for fixing vertical and horizontal position of the second unit relative to the first unit.

Abstract: There is disclosed a fishing reel drag mechanism for a spool shaft supported at both ends, comprising a pinion engaged with a master gear on a master gear shaft, a bearing for supporting the master gear shaft capable of axial movement relative to said master gear shaft but not rotation relative thereto, a ratchet wheel attached to an outer circumferential edge of the bearing which is engaged with the master gear by a one-way pawl arrangement, an a drag control arrangement which, when tightened, pushes the bearing inward on the master shaft, thus engaging the ratchet with the one-way pawl arrangement. When the spool is rotated in a reverse counterclockwise direction to pay out the fishing line, the pinion causes the master gear to rotate in a reverse counterclockwise direction. When the drag control lever is tightened down, so that the ratchet engages the one-way pawl, a braking force is applied to the master gear, thus braking the pinion and reel rotation.

Abstract: A radial arm saw, comprising a base having a column mounted thereon with a guide arm supported vertically movably on the column. The guide arm has an inverted U-shape. A saw member slides along the bottom of the guide arm by means of bearings engaging symmetrically arranged longitudinal grooves in the side walls of the arm. The grooves have lower faces inclined downwards towards the centerline. The bearings are similarly inclined and can be adjusted axially. A rectangular U-shaped locking spring is engaged with the saw member support so as to have one of the arm side walls between its arms. When the locking spring is compressed, the saw member is locked along the arm. An integral switch case is fitted within the arm and has an integral bendable cover to cover a recess for a power switch. The switch has an ON-button which can be locked to be inoperative. The back of the switch case and the arm support on the column have corresponding U-shaped grooves for fitting a wire support tray.