Abstract: The present invention provides a defect-less and easy to operate power actuated piston tool with automatic piston return, designated for driving fasteners into a base like masonry, concrete, wood or the like. The tool according to the invention is characterized by that on piston shank (11) of piston (1), there is an elastic returning bush (7), situated between piston head (12) and fastener guide (5), said returning bush (7) is a one-piece in shape of bellow, made of elastomeric material, of regularly variable diameter.

Abstract: A rotary capping apparatus and feedback control apparatus for regulating torque applied to screw-on type caps for containers is disclosed. The present system is integrated into a machine suitable for a clean-room environment. The apparatus includes a supporting frame whereon a computer-controlled driving mechanism including a servomotor for transmitting a predetermined torque to an inflatable gripping device actuated by compressed air for gripping and torquing such caps is provided. The inflatable gripper is imparted with automatic vertical height adjustment to accommodate containers of various sizes. The present rotary capping apparatus provides an integrated closed loop feedback control system utilizing a computer for setting parameters for regulating the application of such torque and a servocontroller interfaced for bidirectional communication with the computer.

Abstract: The present invention relates to a percussion electrical hand-held tool having an electronic control unit (5) for controlling at least one power parameter of the electrical tool, and a substantially flat force sensor for controlling operation of the electronic control unit (5) and arranged sliding displacement-free for sensing a press-on force (F, F1) applied by a user in an operational direction of the electric tool, without being displaced, between at least two, associated with each other, press-surfaces (7a, 7b) extending at least partially transverse to a percussion axis (A) of the electrical tool.

Abstract: A conveying device for machines for packaging rolled articles includes a series of carriages, fastened, regularly spaced apart, to conveying means moved stepwise along an endless path. Each pair of adjacent carriages define holding seats for respective groups of articles to be packaged in a single pack with a sheet of a wrapping material. The carriages include a plurality of pushing prongs which extend, perpendicular to the conveying means, from slide means slidingly mounted on gliding means fastened to the conveying means crosswise to a forward movement direction of conveying means. The conveying device include also means for adjusting the position of the pushing prongs on the carriages, aimed at operating the slide means to move in a selected position along the gliding means.

Abstract: In a machine for packaging stacks of multiply articles of paper into wrapping sheets, a first line conveys stacks of multiply articles of paper to a a wrapping station while a second feeds wrapping sheets to the wrapping station. Each sheet is kept vertically in a waiting position in the wrapping station until one stack is moved towards the sheet, so that the sheet gradually folds around the stack with overlapping parallel edges to be heat-welded. In the said second line there are first endless belts and second endless belts for a wrapping sheet received from conveying means situated upstream. The sheet is pulled up to the wrapping station and is clamped in the wait position by suction.

Abstract: A nail-hammering apparatus includes a hammer, a first solenoid, a second solenoid and a control device. The hammer can hammer a nail into a workpiece. The first solenoid can be turned on so as to drive the hammer. The second solenoid can be turned on in order to drive the hammer after the first solenoid. The spring tends to bias the hammer to its original position when the second solenoid is turned off. If the nail has not entirely enters the workpiece, the control device turns on the second solenoid so as to drive the hammer one more time.

Abstract: The present invention relates to an electric hand tool, in particular a drill or a screwdriver, comprising a housing, an electric motor accommodated therein and having a motor shaft, a tool shaft which is mounted in the housing and which is driven by the motor shaft via a transmission, and a hand-operated locking mechanism for blocking the rotating movement of the tool shaft, wherein this locking mechanism acts on the motor shaft, so that it is possible to suffice with a lesser locking force in order to block the tool shaft with the same locking effect.

Abstract: An apparatus for preventing disengagement of an axially movable and rotatable flexible core of a flexible shaft attachment, which has a driven end and a handpiece end, and the driven end has a ferrule for attachment to a rotary power tool. The rotary power tool has an exteriorly threaded hollow output shaft with a first predetermined interior depth for receiving the base end of tool bits that can be used with the power tool, and the flexible shaft attachment has a drive cap attached to the output shaft, and the drive cap has an aperture sized and shaped for receiving the core in fixed rotating engagement. The apparatus includes a generally cylindrical stop plug having an open end portion and a closed end portion, and a cylindrical chamber extending from said open end portion to said closed end portion. The open end portion has an outward extension adapted to engage the end of the output shaft and be held in place by the attached drive cap, and the chamber is capable of receiving the core therein.

Abstract: A straight fixed cutter is mounted on a frame, a movable cutter carrier slidably supported on the frame to be moved along the fixed cutter. A movable cutter having a disc shape is rotatably mounted on the carrier, and contacted with the fixed cutter. A movable cutter rotating roller is rotatably mounted on the movable cutter carrier and resiliently contacted with the fixed cutter. An endless belt is provided in the frame along the fixed cutter, and connected with the movable cutter carrier. The movable cutter carrier is moved by the endless belt, and the movable cutter is rotated along the fixed cutter to cut a paper sheet mounted on the fixed cutter.

Abstract: A nail gun and depth control spacer assembly for ejecting nails into a substrate which contains two or more layers of roofing materials one of which is a compressible fibrous layer. The nails penetrate the substrate but are prevented by the depth control spacer from permanently compressing the compressible fibrous layer which springs back to is original thickness after completion of the nailing process. The depth control spacer, attached to the base of the nail gun, is of semi-oval configuration having a pressure sensitive layer and a solid layer, is provided with an oval cavity in its center portion through which the nails are ejected into the substrate.

Abstract: A nozzle assembly for nailers includes a magazine connected to a body of the nailer and a base plate is connected to an end of the magazine. A nozzle has two grooves with which the two sides of the base plate are movably engaged. A plurality of nail guide holes are defined through the nozzle and communicate with openings defined in the base plate and slots defined in a side of the magazine so that nails engaged with the slots are sent to the nail guide holes to be ejected. Two hooks extend from the nozzle and a cap is mounted on the nozzle by engaging the two hooks with two apertures defined through the cap. Pins extend through the nozzle and are engaged with the base plate.

Abstract: A support for supporting a power tool (3) on a displacement carriage (2) and including an attachment element (7) for connecting the power tool (3) with the carriage (2), and a bolt insertable into an eyelet (8) of the power tool (9) for releasably connecting the attachment element (7) with the power tool (3) with the bolt (6) having axial and radial conduits (12, 13) communicating with an outer cylindrical surface of the bolt (6), so that predetermined position of the bolt (6) in the eyelet (8), a drilling fluid can be delivered through the bolt (6) to fluid conduits (4) of the power tool (1).

Abstract: A sealing device includes a top part forming a bell and a bottom part forming a vat, receiving a container to be sealed with a film in the chamber defined by the top and bottom parts. The top part includes on a side supplying the film, a slot for the passage of the film running through a wall of the top part, and a device, preferably an inflatable pipe, for obstructing the slot and blocking the film. The wall of the top part also includes a device for inserting and/or extracting fluid, opening inside the chamber between the slot and the wall lower edge, for extracting gas under vacuum, injecting gas and/or filling the container.

Abstract: A plunger is shiftable in response to a trigger operation by a user. A valve piston has a valve piston chamber therein for slidably accommodating the plunger and an axial bore into which the plunger is inserted. An air passage connects the valve piston chamber to an atmosphere via a clearance between the plunger and the axial bore of the valve piston. A seal member is provided to seal the clearance between the plunger and the axial bore of the valve piston. And, a relief passage is formed on at least one of the plunger and the axial bore of the valve piston to open the air passage, thereby allowing compressed air to exit from the valve piston chamber to the atmosphere under a condition where the plunger is engaged with the axial bore of the valve piston.

Abstract: A post processing cap applicator for applying a cap to a closure spout after erection, spout attachment, filling and sealing of a carton accommodates custom caps. Cartons are conveyed through the applicator in a first forward direction. A cap supply is configured to dispense caps and to position an edge of a cap in a path defined by movement of the closure spout through the applicator. The closure spout engages the edge of the cap. The applicator includes a rotating, torque-applying element and a drive operably connected to the torque-applying element. The drive is operable in a first direction to tighten the cap onto the spout to a predetermined torque and, once the predetermined torque is reached, to stop tightening the cap. A method for post processing cap application is also disclosed.

Abstract: A fastener driving tool includes a driver having a driver shaft extending therefrom, a first extension member operably connected to the driver and a second extension member operably connected to the first extension member. The tool is for use on roof deck panels. The second extension member slidingly engages the first extension member between a loading position and a driving position. A bearing assembly operably connects the first and second extension members. The bearing assembly is formed from a non-metallic, low-friction material. A portion of the bearing assembly is mounted to one of the first and second extension members for sliding engagement with the other extension member and is disposed to prevent direct contact of the first and second extension members with one another. A fastener receiving member is mounted to the second extension member for receiving fasteners when in the loading position and for supporting and releasing the fasteners when in the driving position.

Abstract: A nail cartridge for a nail gun includes a nail cartridge formed integral, and a nail pusher received completely in the nail cartridge so that the appearance of the whole nail cartridge look clean and neat. The nail pusher has a special structure so as to simplify its operation and handling.

Abstract: A method for induction sealing a plastic part to a composite container using a pair of linear coils electrically connected to low frequency generators. The linear coils produce overlapping electromagnetic fields on either side of the container. Rotating the container assures even heating of the polyethylene liner and plastic part. The method produces a reliable seal between the liner and plastic part and can be used at high production speeds.

Abstract: Method and device for measuring a folding angle of a sheet (6,25,26) in a folding machine, whereby a number of distances are measured in a plane (28) that crosses the sheet (6,25,26) and the element (4,24,7), whereby a distance profile (19) of the measured distances is determined, and whereby the folding angle (A) of the sheet (6,25,26) is determined as a function of the angle (B,B1,B2) between the sheet (6,25,26) and the element (4,24,7).

Abstract: A system for dispensing a fastener from a reel of fastener stock so as to couple together two or more objects includes a frame, a needle, a feed mechanism for advancing the fastener into the needle, a severing mechanism for severing the fastener from the fastener stock, an ejection mechanism for ejecting the fastener through the needle, and a needle guard assembly mounted onto the frame. The needle guard assembly includes a guide plate having a front surface and a bracket assembly affixed to the guide plate. The bracket assembly is slidably mounted onto the frame to enable the guide plate to be slidably disposed between a protected position in which the tip of the needle is positioned behind the front surface of the guide plate and a fully retracted position in which the tip of the needle is positioned in front of the front surface of the guide plate.