Abstract: The ram of the reciprocating saw is driven by a scotch yoke mechanism. A planetary gear system consisting of a ring gear and an idler gear imparts an elliptical or linear path of movement to the pin forming part of the scotch yoke mechanism. The ring gear may be adjustably positioned for changing its relationship relative to the idler gear thereby varying the orientation of the elliptical or linear path of movement of the drive pin for varying the stroke of reciprocation of the ram which is connected to the saw blade holder. Actuation of the ring gear to its desired position automatically causes the foot plate of the saw to be located in its desired position for the selected stroke of movement.

Abstract: An apparatus for facilitating the laying of floor boards on a subfloor includes a base member having an arrangement of subfloor engaging spikes provided on its bottom surface for anchoring the device during operation. A floor engaging member for engaging the floor board being laid is also provided. A handle and yoke assembly is pivotally mounted on the base member in order to operate the floor engaging member, and a transmitting arrangement is connected to the floor board engaging member for transmitting the pivoting movement of the handle and yoke assembly into sliding movement of the floor board engaging member. Additionally, the apparatus is provided with an arrangement that is connected to the base member for preventing the transmitting arrangement from being forced upwardly during operation of the apparatus.

Abstract: A flexible saw blade particularly well suited to the cutting of tree limbs, having a predetermined rivet pressure which assures that just the right degree of rivet pressure will act on transversely adjacent cutting links so that pivoting is easy but not too loose; having teeth pointed in predetermined directions to ensure sufficient kerf width to allow the flexible saw blade to pass through the limb as it cuts and prevents uncut wood from forming a ridge between the rows of cutting links, which would otherwise have the effect of impeding the cutting operation; and having a turn-link optionally incorporated which causes the flexible saw blade to automatically right itself with respect to the limb surface upon being passed over the limb and before actual cutting begins.

Abstract: A chain saw feed mechanism includes an arm pivotally mounted to the chain saw and carrying a dog for pivotally engaging the workpiece at the kerf. Thrusting the chain saw along the longitudinal axis of the guide bar moves the guide bar along an arc concentric to the point of workpiece engagement and thereby cuts laterally through the workpiece. Longitudinal thrusting force applied by the operator transfers via the lever arm into lateral feed force needed for cutting the workpiece. The feed mechanism is particularly useful in aggregate cutting applications, where the chain saw is heavy and large cutting forces are needed to pass the saw through the aggregate.

Abstract: An elongate handle mounts a generally "J" shaped head thereon in a forward end of the handle of the "J" shaped head, including a planar construction defining an inner edge and an outer edge, with the inner edge including a first lug cooperative with the second lug defining a receiving gap therebetween, with the receiving gap intersected by a piercing lug for puncturing of a gutter portion of an associated paint can to permit drainage of paint through a conventional paint can gutter. The organization includes a lifting lug mounted to an outer edge of the "J" shaped head for removal of the associated paint can lid. The handle of the organization further includes an internally threaded bore selectively mounting a hammer head portion or a blade support member to secure a blade therewithin for scraping during a painting procedure.

Abstract: A handle of a knife is provided with a recess for receiving an implement, such as a tool or a toothpick. The recess is between the sideplates of the knife and above a locking bar spring. The implement has a hole for accepting a pin carried by a pivotally mounted arm. When the arm is in a first pivotal position, the pin is in engagement with the implement to hold the implement in the handle recess securely. When the arm is rotated, as by pressure exerted by a user's thumb, the arm is rotated and the pin is lifted from engagement with the implement to allow the implement to be withdrawn from the recess in the handle.

Abstract: A practical and safe heavy duty hedge, bush and brush cutter having a forwardly mounted dual-sided tine set that comprises a means for readily cutting flexible heavier limbs. The forwardly mounted tine set preferably is part of a comb-like attachment which includes a number of additional dual-sided tine sets that define a plurality of gathering, holding and cutting areas. The attachment is designed so that it can be mounted from one side of a conventional chain saw blade without removing the chain blade from the chain guide and yet provides stopping surfaces on both sides of the guide bar and chain blade of the saw to support severed limbs and branches in such a manner that bias cutting of flexible limbs and shredding of branches is prevented. The comb-like attachment including the dual-sided tine sets defining the gathering, holding and cutting areas for branches to be cut can be installed and removed from one side of the chain saw blade without the use of special techniques or tools.

Abstract: An electric circular saw of the type including a mechanism for tilting a base relative to the plane of a blade is provided wherein a side knob for being gripped by the user during cutting operation pivotally connects the base and a body of the circular saw through a base attachment portion and a bevel plate having an arcuate guide groove extending through an angular distance corresponding to a tilt angle of the base relative to the blade. The side knob is threaded to the base attachment portion and movable together with the base when the base is tilted. The side knob is spaced from a guide surface of the base by a distance at least larger than a maximum radius of the side knob. The distance between the base and the side knob is constant regardless of the relative angular position of said base and the blade, so that circular saw can be held stably and hence is capable of performing an accurate cutting operation.

Abstract: A can opener comprising a housing having a handle. There is a cutting wheel with a cutting edge for severing a can wall, the cutting wheel defining a cutting wheel axis. There is a traction wheel having a gripping surface to engage a can, the traction wheel defining a traction wheel axis. A pair of spindles rotatably mount the traction wheel and the cutting wheel in the housing such that their axes are substantially perpendicular and the wheels are positioned adjacent and spaced apart from each other to define a gap adapted to accept a can to be opened. One of the wheels is movable toward the other to close the gap thereby engaging and locking the can between the cutting wheel and the traction wheel such that the cutting wheel acts to sever the can wall and the traction wheel acts to move the can past the cutting wheel. In order to close the gap, a fixed thrust surface associated with the housing, and a spaced, adjacent movable thrust surface associated with the movable wheel are provided.

Abstract: A squeeze tool includes a pair of levers pivoted together to form a handle section of each lever on one side of the pivot connection and a work arm on the other side of the pivot connection. Each handle has a gripping portion asymetrically disposed with respect to the central plane of the tool. The gripping portions are angled opposite to each other with their remote ends converging toward each other and the near ends diverging away from each other both longitudinally and transversely. The gripping portion includes a gripping surface which is generally anatomically contoured having an arcuate thickened central portion to improve the gripping comfort and the efficiency of the tool.

Abstract: Disclosed herein is a safety razor having a blade, a handle mounted to the blade, and counting means attached to the handle for keeping track of the number of uses of a particular blade. The counter can be adapted for use on a disposable razor or on a razor having a replaceable blade.

Abstract: A cutting device which retains a severed portion of an object between two jaws. The cutting device is a mechanism such as shears, clippers or cutters having a jaw and a blade which close against each other so as to cut an object, and a second jaw which moves as said blade moves so as to retain a severed portion of the object which has been cut between said jaws, keeping the severed portion from falling away.

Abstract: A food utensil (10) is provided for cutting a food product (12) and removing material (18) therefrom. A flexible U-shaped gripping member (20) is provided where a base section (24) is formed in one piece formation with arm members (26,26') and extend to spoon shaped second end sections (32,32'). The spoon shaped second end sections (32,32') include serrations (36,36') for cutting through a thickened skin (14) of the food product (12) and further allowing a cut through the food material (18). A second set of tooth members (46,46') are provided for gripping a pit (16) and for removal of the pit from the food product (12). In this manner, there is provided a combination food utensil (10) which allows for neatly and simply slicing a food product and removal of the material therefrom with the further ability to scoop the material (18) from the inside of the food product (12).

Abstract: An electric plastic cast saw control system for cutting off of plastic cast composed of an inner layer of absorbent cotton and an outer layer formed by hardened covering material including a thin conductive plate placed between the inner layer and the outer layer so that a relay device is triggered to cut off power supply to electric saw on the instant the saw gets contact with the thin conductive plate and consequently stop the electric saw instantaneously, and a reset device to resume power supply to the electric saw automatically or manually after cutting off of the power source.

Abstract: A shaving unit comprises at least one blade and a shaving composite that has a surface for engaging the user's skin adjacent the blade edge. The shaving unit may be of a disposable cartridge type adapted for coupling to and uncoupling from a razor handle or may be integral with a handle so that the complete razor is discarded as a unit when the blade or blades become dulled. The blade edge (or edges) cooperate with skin engaging surfaces to define shaving geometry. The shaving aid composite is a mixture of water insoluble matrix material, an effective amount of shaving aid material, and a water soluble low molecular weight release enhancing agent that enhances the releasability of the shaving aid material from the matrix material.

Abstract: An improved cutting instrument of the type having a blade and an extension thereof serving as a handle wherein the handle extends upwardly and inwardly at an acute angle with respect to the blade in order to permit the transmission of forces directly from the handle to the blade more efficiently.

Abstract: An ergonomic handle mechanism for a cutting machine having a vertically reciprocating knife. The position of the handle between a horizontal orientation and an orientation at an angle thereto is adjustable for greater comfort as well as a longer working time without tiring so that greater productivity may be achieved. A link to which the handle is attached is pivotally mounted to a block which is fixedly attached to the machine housing. A pin having an eccentric portion received in a groove in the link is provided to determine handle position by the rotational position of the pin. A projection is provided on the block for limiting the pivotal movement of the link and thus acting as a stop in case of pin breakage.

Abstract: An electric shaving apparatus is provided which comprises a housing, a switch for activating switching cycles in which the apparatus is switched on and off, a holder for at least one external shaving member with hair-entry apertures, and an internal shaving member adapted to be driven by the external shaving member, the housing having a collecting space for shaving particles, which collecting space has a closing member with a locking mechanism, which locking mechanism comprises an actuating member, the apparatus comprising means for counting the number of switching cycles and a signalling device for signalling that cleaning of the collecting space is desirable in response to a predetermined or selected number of switching cycles. The signalling device comprises a light-emitting element in combination with the actuating member.

Abstract: A locking, folding knife or tool comprising a handle with a groove dimensioned to receive a knife blade or other instrument that pivots about an integral pivot post between a closed position in the groove and an extended position. The pivot post fits into a hole in the blade of the knife which has two cutout portions along the periphery of the hole. The pivot post has an additional cutout portion. The handle carries a bolt for pushing a spring biased transfer bar toward the blade thereby disengaging a locking pin from one of the cutout portions of the blade and engaging the cutout portion of the pivot post so that the blade can pivot freely about the pivot post. The first cutout portion locks the blade in the extended position; the second cutout portion retains but does not lock the blade in the closed position. Additionally, a strut pivoting between the transfer bar and the handle can be included for added security in the locking of the blade.

Abstract: A power operated portable cutting tool for rescue work. A cutting head comprises first and second jaw members, each jaw member having a cutting edge portion adjacent one end and a shank portion adjacent the other end. The jaw members are pivotally attached together about an axis of pivot generally intermediate their ends so that the cutting edge portions are generally opposing, and so that pivoting the shank portions apart pivots the cutting edge portions of the jaw members closed. A hydraulic cylinder and piston are mounted between the shank portions of the jaw members along an axis generally transverse to the axis of pivot of the jaw members. A handle connects the tool to a hydraulic fluid supply line and to a hydraulic fluid return line. Hydraulic fluid is selectively applied to the cylinder to extend the piston and close the jaw members. The jaw members are spring biased to retract the piston and open the jaw members.