Abstract: A safety razor comprises a handle, at least one blade, a head element arranged to carry the blade, and a rotary element arranged to rotate in response to contact with a surface to be shaven during connected with the head element so that when a user moves the handle element and therefore the element in a predetermined direction during shaving the head element and therefore the blade is displaced in a direction which is transverse to the predetermined direction in response to rotation of the rotary element.

Abstract: A buttressed edge cutting tool wherein alternating buttresses and grooves are formed across blade faces with each groove having a depth fairing smoothly to zero at its end remote from the cutting edge.

Abstract: A bell crank type strip feeding apparatus is disclosed in which one arm of the bell crank is coupled to an actuator and the other arm has a feed pawl thereon for feeding the strip. The actuator is a crank pin which is moved along a circular path about a fixed center. The intermediate pivot of the bell crank is mounted for movement along an arcuate path in response to the circular motion of the crank pin. The intermediate pivotal axis of the bell crank is yieldingly supported so that it can move laterally of the arcuate axis path when the feed pawl engages a fixed stop. A shearing mechanism is also disclosed for shearing the strip material at the conclusion of the feeding stroke.

Abstract: A braking arrangement for a motor-driven chain saw is disclosed. The braking arrangement is actuable by a releasing device and is held in the release position against a spring force by means of a latching device. The braking arrangement includes a brake band holding member to which a brake band is fastened. The brake band can be tightened around a clutch drum of the motor-driven chain saw by means of an ancillary chain brake device provided in addition to the chain brake device, so that the clutch drum is brought to an immediate stop. This braking action occurs also if the releasing device of the chain brake device is not actuated. In this way, the chain brake device remains activated thereby enabling it to act during operation of the chain saw, for example, in the event that the motor-driven chain saw kicks back while the saw chain is running.

Abstract: An improved hand operated metal shear that removes a strip of metal in small sections with the lower cutter attached to the upper handle by a cylindrical post of lesser diameter than the strip of metal removed so that the shears may be turned sharply to either side without distortion of the metal being cut and with the upper box-like cutter having a curved bottom to facilitate cutting of corrugated metal.

Abstract: A horizontal disc is supported on an arm on a portable saw mill carriage in a plane such that the disc is arranged to follow a horizontal saw kerf to provide vertical stabilization between a log and a carriage. Also a foot is mounted on an arm and is arranged to engage the face portion of a log to provide lateral stabilization. This arm is laterally adjustable for locating it according to the depth of cut. Furthermore, a hold-down wheel assembly is supported on a link which is urged downwardly to provide vertical stabilization between a log and the carriage.

Abstract: A valveless pneumatic hammer comprising a backhead assembly at one end of a hollow casing and a bit assembly at the other end of the casing, a rod extending into the casing and having a passage out to atmosphere at the other end of the assembly, a chamber divider in the backhead end of the casing having a control rod projecting into the casing, a piston having a large bore in one end and a smaller bore end and the larger bore end being adapted to cooperate with the chamber divider end for the sealing of the larger bore, the piston reciprocating between a first position with the smaller bore end against the bit assembly, and a second position with the piston displaced towards the backhead assembly, a first chamber with the piston in the first position, a second chamber with the piston in the second position, first and second fluid supply paths through the backhead assembly, between chamber divider walls and the casing wall, first and second fluid exhaust paths from the first and second chambers, respectively o

Abstract: An hydraulic top drive apparatus and tubular handling device mounted beneath a conventional crown block, traveling block, bail, and swivel, and including an hydraulically powered top drive pipe rotating device having a single hollow shaft with threads at each end for mating on one end with the drill string or tubular to be worked and on the other with a drilling swivel. The top drive rotating device is attached to a wheeled support frame which moves on guide rails which are mounted to a derrick. The top drive apparatus can be pivoted in a horizontal plane away from the vertical axis of the drill string or other tubulars. Motive force is applied directly to the drill string or other tubular being worked. A pivotable pipe lifting and positioning device is mounted beneath the top drive on the wheeled support frame for picking up pipe and positioning it so that the pipe threads can mate precisely with the threads of the top drive shaft.

Abstract: The cutting tool includes a tool body having a longitudinal channel to receive different sizes (outer diameters) of shielded cable for cutting and a cutter arm movably mounted on the body to bring a rotatable cutter blade into the channel to cut the shielding. A transverse adjusting member is mounted on the tool body for movement toward or away from the channel to adjustably position a pivotable cable clamp detent in the channel and includes a biasing spring that allows pivotable deflection of the clamp detent toward one end of the channel when the cable is inserted from the other end and return of the clamp detent to a cable clamp position when the cable is moved slightly in the opposite direction to prevent cable movement as a result of cutting forces. Movement of the adjusting member controls the adjusted position of the clamp detent in the channel and means is provided on the adjusting member to releasably lock same for a particular size of shielded cable to be cut.

Abstract: An angular attachment to a rotary and percussive power machine, such as a hammer drill, includes a rotary power input tubular member driven by a rotary part of the power machine, a tubular power output supported for rotation at an angle relative to the axis of rotation of the power input member and including a holder for a rotary and percussive work tool. The tubular power input and output members are interconnected by an intermediate power transmission. A device for transmitting impacts from the percussive part of the power machine includes two guiding channels arranged in alignment with central bores of the tubular power input and output members and each enclosing at least one impact deviating element. The impact deviating elements are in sliding engagement with each other and with a corresponding coupling member arranged in respective contact bores of the power input and output members.

Abstract: The invention is directed to a cutter block for a dry shaving apparatus, having cutter blades of circular circumference arranged transversely to its longitudinal axis on a carrier, the cutter blades being received by a cylindrical metal-plastic carrier comprising a metallic core and a cylindrical plastic body encasing it closely and forming a compact unit therewith.

Abstract: An improved tape dispenser comprises a body in the form of a rectangular block with a recess at one end to contain a wheel with a tape reel thereon, a tape stand with a zigzag cutter blade at the other end, a first adhesion face behind the cutter blade, a side post with a guide roller in the middle of the body to depress the tape passing beneath it, and another tape stand with a second adhesion face so that the tape extending from the tape reel is bent in a plurality of positions to maintain stability of the body, prevent the wheel from being pulled out of the body and prevent dislocation of the uncut end of the tape from the first adhesion face by reaction of the reel after cutting.

Abstract: A hand-held pneumatic rescue tool may be driven from a bottled compressed gas. The driving gas is used only for the blow-striking stroke, while a compression spring is used to provide a force for the return stroke that is independent of the pressure of the driving gas. Thus, the pressure of the driving gas may be varied to adjust the impact force of the blows struck, without adversely affecting operation of the tool. By appropriate valving, the tool will operate continuously and automatically so long as driving gas is supplied, as determined by the operator.

Abstract: The applicator is provided with a pair of handles and an anvil carrier against which rows of staples can be ejected. The applicator includes support elements for supporting the stapler cartridges and pushers for pushing the staples from the cartridges when the handles are squeezed together. Each cartridge carries a section of a string in the plane of the staples so that after ejection of the staples, the string is fixed about the periphery of an aperture in the tissue for use as a purse string in an end-to-end anastomosis procedure.

Abstract: A utility knife of the type having a replaceable blade held in a blade holder and used for cutting carpeting, trimming wallpaper and other related uses. The blade holder comprises a handle which can be gripped when using the tool, the handle including an internal recess for containing the blade as well as a slide member having dove-tail edges cooperating with a tapered guideway and a thumb grip on the slide member projects through an opening in the handle to allow the user to readily move the slide member. The cooperation between the dove-tail edges on the slide member and the tapered guideway causes a clamping force to be imparted to the blade, locking it in a desired preset position.

Abstract: A first eccenter sleeve allocated to the drive of the devices operative for the balancing of masses is drivingly connected to the eccenter shaft by means of a displaceable locking bolt. The first eccenter sleeve is provided with pins and slide rings engaging into slots in the second eccenter sleeves. The second eccenter sleeves are connected via punch connecting rods to the ram of the machine. Slides are supported in the machine frame, which slides can be moved into slots provided in the second eccenter sleeves. Accordingly, all three eccenter sleeves can be held against rotation on the eccenter shaft. The drive connection between eccenter shaft and all eccenter sleeves proceeds accordingly via one single connecting member, namely the locking bolt. And this locking bolt operates together with one eccenter sleeve. Accordingly, no splined shafts which must be machined extremely precisely but are prone to knock out during operation are necessary.

Abstract: A hand-guided impact hammer and hammer drill having a handgrip which is spring-mounted relative to the hammer housing. At the bottom, the handgrip is spring-mounted harder, with greater stability against lateral displacement relative to the hammer housing, than at the top. On the one hand, during normal operation of the hammer, an optimum vibration damping is provided, and on the other hand, even during great pressure on the handgrip, and during lateral twisting of the handgrip, no direct contact can occur between the parts of the handgrip and the parts of the housing. Furthermore, the hammer can be efficiently guided at all times, even with heavy tools.

Abstract: The invention concerns a nibbling tool for cutting sheet material having a body (12) in which a rotary shaft (14) is mounted for rotation by an external drive. The rotary shaft is coupled to a punch (33) such that the rotary movement is converted to a reciprocal movement of the punch. The punch is guided in a die (27) with the punch and die having co-operating cutting edges. The die (27) has a circular sectioned shank (28) located as a good sliding fit in the body (12) and retained by a screw (30) projecting into a recess (29) in the shank (28). When the screw (30) is released the die can be rotated to change the cutting direction or removed and replaced without opening up the body or taking out other parts. With the die removed the punch can be removed easily. The punch is guided both at its upper end in a bore (25) in handle (23) and at its lower end by its head (38) located in a bore in a lower die portion (53) connected to the main die portion (28) by a web (55).

Abstract: An attachment for a newspaper rolling machine for applying a waterproof covering, preferably cling-type film, around the rolled newspaper. During the rolling of the newspaper (21), the web is fed into the nip of the partially rolled newspaper by the downward movement of pivoted feed arm (9) which grips the web by way of feed rollers (15, 16). Prior to the completion of the rolling action, the feed arm is pivoted upwards and pivoted lever (17) with hot wire cutter (18) pivots downwards to sever the web at a point so as to provide a sufficient length of web to completely envelope the rolled newspaper and maintain it in its rolled condition.

Abstract: A magazine for a power-driven drive-in apparatus for the accommodation of pins or nails, especially headless nails or pins, comprising a guiding channel the roof wall of which is adapted to assume different heights vis-a-vis the bottom wall for adaptation to the lengths of the pins or nails. A side wall of the guiding channel is formed by at least one longitudinal surface of a lamination which is supported in the upper region of the guiding channel to be capable of limited movement along an axis transverse to the longitudinal axis of the guiding channel and is biased by a spring in a direction towards the other side wall.