Abstract: A safety device for a pneumatic nailer includes an attached tube connected to the magazine of the nailer and including a first passage for movably receiving a first pine and a second passage for movably receiving a second pin. A driving piece is pivotably connected to the attached tube at a mediated point of the driving piece. A spring is received in the second passage and biased between a closed end of the second passage and a first end of the second pin. A second end of the second pin is retractably extended through an open end of the second passage by the spring and can be inserted in a locking hole of a safety bar movably connected to the barrel of the nailer. Two ends of the driving piece are respectively connected to the first pin and the second pin such that when no nails are located in the barrel, an end of the first pin is extended into the magazine while the second pin is inserted in the locking hole of the safety bar to lock the safety bar.

Abstract: A percussion hammer drill and/or percussion hammer that can be guided by a handgrip comprises a pneumatic spring striking mechanism with a reciprocating drive piston and with a percussion piston that can be operated by the drive piston. A cavity for accommodating a pneumatic spring is provided between the drive piston and the percussion piston. The cavity can be connected to the surrounding area via a no-load operation channel in order to achieve a no-load operation. This this end, a valve is situated inside the no-load operation channel and can be controlled according to an application force that can be applied to the handgrip by the operator.

Abstract: A flexible stand-up liquid pouch is formed from a sheet of foil film laminate material whereby opposed side walls of the material are folded together with sealed circumferential edges to form an enclosed chamber. A liquid is provided in the chamber, and the side walls of the sheet material which form the container have raised portions which, when sealed together, cooperatively form an internal straw restraining passage inside the container. The straw restraining passage communicates with the liquid chamber and a straw is held loosely captive inside the straw restraining passage and is axially displaceable therein. The straw restraining passage defines a reduced cross-sectional area of the chamber, and the pouch is manufactured with a weakened portion on an upper portion of the pouch, whereby the weakened portion can be torn by a user, thus enabling the internal straw to emerge, due to the buoyancy of the straw, from the interior of the pouch.

Abstract: A wrapping machine has a film dispensing unit (1), which includes first supporting elements (2) and first deflecting elements (51 . . . 510) for a first wrapping film (4) and second supporting elements (6) and a second deflecting element (9) for a second wrapping film (8). The second deflecting element (9) is movable between a first position (I) and a second position (II) by an actuator (10). In the first position (I), the end of the second wrapping film (8) is in contact with the first wrapping film (4) to cause the wrapping films to adhere to each other during the wrapping process. In the second position (II), the second deflecting element (9) is at a distance from the first wrapping film (4) so that the second wrapping film (9) is clear of contact with and adhesion to the first wrapping film (4).

Abstract: A torque control system for electrically driven rotating tools capable of always properly and efficiently effecting constant-torque tightening of screws or the like and capable of easily achieving the miniaturization of the whole device and the improvement in torque control accuracy, the torque control system comprising a clutch mechanism that, when a load torque of predetermined value or above acts on a driven shaft joined to the output shaft of an electric motor, operates to cut off the engagement between the output shaft and the driven shaft, a torque setting mechanism that adjusts the engagement point for the clutch mechanism, and a torque detecting mechanism (42) for detecting the clutch operation of the clutch mechanism to effect drive stop control of the electric motor, wherein the torque detecting mechanism (42) is set so that it effects drive stop control of the electric motor simultaneously with the detecting operation thereof in a state in which the clutch operation has been completed as the cam en

Abstract: A setting tool for driving fastening elements in a constructional component includes a drive piston displaceable in the guide space (11) of the piston guide (12) by propellant gases generated by a propellant charge from an initial position (40) thereof in the rear region (11.2) of the guide space (11) to an end position (41) in the front region (11.1) of the guide space, and a storage space (20) for the propellant gases and connected by a first valve (23) with the rear region (11.2) of the guide space (11) and connected by a second, electronically controlled valve (24) arranged at an outlet (21) of the storage space (20), with a time-delay, with the front region (11.1) of the guide space (11).

Abstract: A process for preparing a water-soluble container which comprises: a) thermoforming a first poly(vinyl alcohol) film having a water content of less than 5 wt % to produce a pocket; b) filling the pocket with a composition; c) placing a second film on top of the filled pocket; and d) sealing the first film and second film together.

Abstract: A method and apparatus for forming a bag provides a tube of material that is passed over a former. A portion of the tube is folded over the former to define the rim of the bag. Portions of the rim are then welded. The apparatus includes arms that move transverse to the tube. The arms carry crimping fingers that pivot to fold the tube up and in over the former.

Abstract: A device for preventing short nails of a nailing gun from being deadlocked includes a slot-sealing member provided under the gunpoint of a nailing gun. The slot sealing member has its topside formed with an elongate slot sealing portion for sealing up the front slot of the nail row inlet of the gunpoint when the slot sealing member is pushed inward, preventing a short nail from being deadlocked when it is struck in a work. When the slot sealing member is pushed outward, its sealing portion will be moved away from the front slot of the nail inlet to completely open the nail row inlet for facilitating loading a long nail formed in a row in the gunpoint, unnecessary to disassemble the slot sealing member from the gunpoint when a row of long nails and short nails are loaded alternately, and easy and quick in operating.

Abstract: A preferred embodiment comprises a power hand tool of the type which has a generally cylindrical elongated plastic housing with a motor contained within the housing and having an output shaft that extends from the front end portion of the hand tool, and which has a metal front end portion that cooperates with the plastic housing to strengthen a shaft locking mechanism located at the front end of the hand tool. The metal front end portion not only strengthens the outer surface of the housing in the front end portion of the tool, but also has a pair of internal structural ribs positioned to absorb stress that may be present in the housing as a result of force applied to the shaft locking mechanism. The preferred embodiment is also designed to enable the shaft locking pin mechanism to be easily assembled and retained without the need for an E-clip or C-clip as is commonly the practice in commercially available spiral saw hand tools.

Abstract: Pouches which can then be filled and sealed are made by thermoforming a film (29) into moulds (23) in a conveyor (8, 10, 11, 21) while holding the side edges (45) of the film to the side margins (46) of the conveyor by under-pressure applied to the underside of the film through a plurality of holding orifices (44) which extend up through the conveyor and into each side margin (46).

Abstract: A rotational float system (44) that is meant to be used with existing side load protection systems and that may be selectively operated to permit a digger derrick rotation motor (20) or other rotatable equipment to freely rotate toward a side load to ease operation of and prevent damage to the digger derrick (10) and to assist in the correct installation of screw anchors. The rotational float system (44) includes valve structure (46) interposed between the ports (32, 34) of a hydraulic rotation motor (20) and a control mechanism (48) for selectively opening and closing the valve structure (46). The valve structure (46) is normally biased to a closed position and the control mechanism (48) is normally open. When the control mechanism (48) is operated, it opens the valve structure (46) to connect the ports (32, 34) of the rotation motor (20) to one another.

Abstract: In a machine for making filter bags for infusion products, a flattened tube (34) is used which is made from a web (17) of filter paper that: is heat-sealable by thermal reactivation of a layer of glue; is fed continuously in the horizontal position; has individual charges (19) of the infusion product placed on its top surface at suitable intervals; and, lastly, is gradually folded onto itself until its longitudinal edges (18) are juxtaposed. An apparatus (250) for sealing the tube (34) comprises an operator block (94) bearing two rows (251) of emitters (96) designed to give off a gaseous fluid heated to a suitable temperature. The operator block (94), accommodated inside the tube (34) with the emitters (96) aligned and juxtaposed with the edges (18), directs the fluid against internal faces (97) of the tube (34) directly at the layer of glue on the web (17) which is simultaneously folded around the operator block (94) itself.

Abstract: A continuous process for forming a transdermal patch which comprises the steps of: continuously feeding a strip of material comprising a layer of permeable membrane; continuously feeding into close proximity and in face-to-face relationship with the first strip a second strip formed of impermeable backing material; passing the first and second strips together through a filling and sealing station in which the material containing an active substance is introduced between the strips and pouches are formed by first sealing devices which seal the strips together in a longitudinal direction of the strips and second sealing devices which seal the strips together in a transverse direction of the strips; the size of the pouches being adjusted by adjusting the number position and/or frequency of operation of the first sealing devices and/or by adjusting the number position and/or frequency of operation of the second sealing devices.

Abstract: A depth control device includes a linkage connected to and movable with a contact element of a driving tool. A cam follower is connected to the linkage so as to be movable together therewith between first and second longitudinal positions relative to a cam when the contact element is disposed at anon-actuated position. The cam is connected to a driving member which is operable to drive the cam to move in a transverse direction relative to a longitudinal direction, and engages slidingly the cam follower so as to permit movement of the cam follower between first and second longitudinal positions.

Abstract: A process to lower or raise a drilling rig for transportation wherein the drilling rig includes a mast and a top drive. The process to lower includes the steps of moving the top drive within the mast with a vertical guide and torque reaction mechanism to a locked position and locking the top drive to the mast with a locking mechanism. The mast and the top drive are lowered together from a vertical position to a horizontal position. The combined mast and top drive may then be transported in the horizontal position without disconnecting electrical, mud line or other services.

Abstract: A thermoformable, RF-sealable material for use in packaging. The material is produced from a blend including between approximately 5% and 50% by weight of PETG, and between approximately 50% and 95% by weight of PET. A small amount of color concentrate may be added to the blend. The blend may be extruded into sheets and thermoformed to produce packaging material.

Abstract: A flexible bag is positioned in a rigid container, such as a fifty-five gallon drum, and the bag is filled through its spout with flowable product, such as tomato paste. The bag is then expanded in the container to be substantially rigid and thereby reduce film movement and resultant flex cracking. A lid is sealed onto the container and a vacuum drawn from between the bag and the container, to, in turn, expand the bag. Gas volume needs to be present in the bag before the vacuum is applied so that the gas in the bag can expand from the vacuum on its outside. Once expanded, the container can be shipped.

Abstract: A shaping shoulder has a shoulder part and a prism part, joined at a shaping edge, for producing a web, shaped longitudinally in the web transport direction and having an open or closed cross-section and at least one area inside the web in which the cross-section is curved outwardly. The shoulder part has a web inlet and extends from the web inlet to the shaping edge. The prism part has an exit for the shaped web and extends from the shaping edge to the exit. The shaping edge is slanted relative to a cross-sectional prism plane. The prism cross-section is curved partially inwardly and outwardly not only in the vicinity of a web edge. The curvature of areas of the shaping edge belonging to outwardly curved areas of the prism part extend counter to the exit and the corresponding shoulder part areas are curved away from the exit.

Abstract: The invention relates to a synchronizing method and transfer arrangement for synchronizing the patterns of movement between two units included in a packaging line, where one unit is driven intermittently and the other continuously. The invention relates in particular to a transfer arrangement between an intermittently operating tube filler and a continuously operating cartoning machine. The transfer arrangement has a frame arrangement (13) intended to support tube pickers/placers (28) and arranged for a pivoting movement about a horizontal axis (16) and for a turning movement about a vertical axis (17). The turning movement about the axis (17) gives an acceleration course for the frame in a position in front of the tube release station, and this turning movement generating acceleration is obtained by an axially acting cam guide (32). The latter is designed so that the tube pickers/placers in the release position are given the same speed as the case conveyor of the cartoning machine.