Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.

Abstract: A crack-proof structure of the nail pulling groove of a hammer used in a hammer with a nail pulling groove at rear end thereof is disclosed, a V shape nail pulling groove is formed on the meddle portion of the distal end. The lower portion of the nail pulling groove of the hammer has a penetrating round hole. A cylindrical rubber plug is inserted in the round hole for preventing concentration of stress forces or dispersing stress force. Thereby, the inner stress due to the impact of the hammer is absorbed by the rubber plug. Therefore, the nail pulling groove is prevented to crack as the hammer serves to knock a nail or an object.

Abstract: A hand tool with a pivotal head portion includes a first manually rotatable collar which causes movement of a second slidable collar along a handle of the tool to secure the head portion at a desired angle with respect to the handle. Serrations on the tool head and slidable collar releasably engage each other to lock the head at the desired angle. The tool head is mounted on the handle using either ball and socket or tongue and groove configurations.

Abstract: A manhole cover extractor for loosening and lifting a cover by using rods in slots in the top of the cover or drain holes in the cover, the extractor having an elongated head with one end shaped as a sledge hammer and the other end shaped as a tapered, curved arm having a rounded bottom with a pointed pry tip. The curvature of the arm is along a tangent to the bottom center of the arm to position the pry tip under a rod or in a drain hole to engage the bottom of the cover. Serration's on the top of the arm to seat a rod in the slot or a drain hole. A hole in the center of the head receives a handle for swinging the sledge hammer to loosen the cover and to act as a lever for the pry tip when the handle is lifted and pulled.

Abstract: A hammer having a handle connected to the bottom end of the hammer head assembly. The hammer head assembly has a claw portion, a central portion, a head portion and a relieved connecting portion between the head portion and the central portion. The head portion has a flat top wall surface. The front surface of the head portion has a plurality of recesses formed therein with no protrusions extending outwardly from the front surface. The recesses cover at least 30 percent of the surface. The recesses may be aligned in rows and columns and they provide a better gripping surface when they strike the head of a nail.

Abstract: A head-to-handle interface for a striking tool having a plane of symmetry has a web in the plane of symmetry and sidewalls around the periphery of the web except for the direction of joining the handle to the head, the web and sidewalls forming socket areas on both sides of the web, such that a handle shaped to engage the sockets is joined to the head in a manner that bending stresses are greatly alleviated at and near the head-to-handle interface. In one embodiment a variable weight system provides for a user varying the weight of the head of a striking tool. In another aspect, a nail-pulling slot is provided with significantly tapered inner walls.

Abstract: The invention comprises a specially designed hammer adapted for driving and removing gutter spikes typically used to hold the gutters at the edge of the roof. Such hammer has a specially shaped groove or claw at the rear that has a straight channel that is adapted to hold the heads of gutter spikes as they are removed. The top portion of the head of the hammer has a knocker head that is raised above the rest of the head and is adapted for hammering upon so that the claw portions can be used to remove gutter spikes. The head is of one piece construction and is preferably made of metal such as steel. The front portion or head of the hammer is broader than standard and is of flat shape in order to maintain contact with gutter spikes during the hammering process.

Abstract: A hammer-head comprising an optimally designed set of nail extraction claws oriented at a predetermined tangency angle relative to an integrally mounted anvil. The hammer-head is to be used with an integral or removable handle to minimize the forces required in extraction of nails and in exercising prying forces by such tools as a common hammer, a crowbar, or a lever with a stationary or movable fulcrum point. An optimization methodology based on minimization of the nail extraction energy or minimization of the nail extraction energy is implemented in a design methodology and an algorithm for the synthesis of the optimal contour shape of the claws.

Abstract: A conventional claw hammer is fitted with a connected arch intermediate the hand-held end of the handle and the head which defines the conventional claw. The connected arch contains a teardrop shaped notch defined as parallel to the handle and so positioned to ease in the removal of a nail from a work surface. The connected arch is made from a hardened steel material, or that of the same strength and likeness, designed to withstand high bearing prestores in conjunction with the removal of nails or spikes from a work surface.

Abstract: In accordance with the present invention, there is provided an apparatus for extracting an embedded or long nail comprising:a) a first front body section having first and second ends wherein a vertical striking surface is provided at said first end;b) a second body section integrally connected to the second end of said first front body section, said second body section having:i) a bottom wall and opposite side walls projecting upwardly from the edges of said bottom wall,ii) upstanding handle means connected to the top of said side walls,iii) an opening in said bottom wall centrally disposed beneath said handle means, andiv) a horizontal V-shaped cut in said bottom wall, said cut facing into said opening; andc) a rear body section having bottom and opposite vertical side walls integrally connected to the bottom and side walls of said second body section, wherein the bottom wall of said rear body section is curved upwardly and rearwardly and having a V-shaped cut in the distal end of said bottom wall.

Abstract: A hammer having a handle connected to the bottom end of the hammer head assembly. The hammer head assembly has a claw portion, a central portion, a head portion and a relieved connecting portion between the head portion and the central portion. The head portion has a flat top wall surface. The front surface of the head portion has a plurality of recesses formed therein with no protrusions extending outwardly from the front surface. The recesses cover at least 30 percent of the surface. The recesses may be aligned in rows and columns and they provide a better gripping surface when they strike the head of a nail.

Abstract: A hammer having unique structure in the handle receiving central portion of its hammer head unit. A wedge unit is formed from two intersecting wedge sections that are made of a specific plastic material. The top surface of one of the wedge sections is spaced downwardly a predetermined distance from the top surface of the other wedge section to form a channel for receiving a magnet. The wedge unit is driven into the top end of the hammer causing the wood to be wedged outwardly in four directions within the handle receiving central portion of the hammer head unit. The wedge sections of the wedge unit have a plurality of horizontal barbs and the respective slots formed in the top end of the handle have mating notches for receiving the horizontal barbs of the wedge unit. An epoxy adhesive may also be used to aid in holding the wedge unit in the top end of the handle.

Abstract: A hammer having unique structure in the handle receiving central portion of its hammer read unit. A wedge unit is formed from two intersecting wedge sections driven into the top end of the handle of the hammer causing the wood to be wedge outwardly in four directions within the handle receiving central portion of the hammer head unit. The wedge unit has a groove in the top surface of one of the wedge sections that allows a nail to be layed horizontally along the top surface of the wedge with part of the nail passing through grooves in the side walls of the handle receiving central portion of the hammer head unit. The wedge unit is also made of magnetic material thereby allowing the nail to be temporarily captured by the wedge unit during the initial stroke of the hammer.

Abstract: An impact tool is disclosed comprising a striking head, such as a hammer (claw, ball peen, ripping or sledge), axe or adze, having a handle-receiving socket extending therethrough with walls tapering toward the handle-receiving opening. The head has aligned holes in two opposite walls adjacent to the handle receiving opening. A handle has a head portion inserted in the socket and a handle portion. The handle head portion has a plurality of gripping surfaces engaging the walls of the socket and a laterally extending hole aligned with the handle head holes. Securing means, such as a two-piece holding screw, bolt, or rivet extends through the aligned handle head and striking head holes and a setting-type plastic resin, such as an epoxy or polyurethane resin, fills the space around the handle head portion in the socket to the end of the socket opposite the handle-receiving opening to secure the striking head against dislodgement during use.

Abstract: A nail removing tool comprises a handle, a tool head having nail-removing claws, and at least one roller rotatably mounted to the top side of the tool head in at least one channel defined therein. The roller includes an outer ring preferably composed of a flexibly resilient polymerized material. The tip portions of the claws include a pair of inwardly-facing and opposing bevelled surfaces which proximally terminate at a pair of inclined ledges for pivoting the head of a nail thereon as the nail is removed.

Abstract: A brick hammer having a handle, a head and a tail and an upper surface extending between the head and the tail on the side of the hammer opposite the handle, has a nail puller fixedly secured to that upper surface and overlying at least most of the width of the upper surface. The nail puller has a pair of claws separated by a V-shaped gap that overlies at least a portion of the width of that upper surface. The claws extend beyond that upper surface and terminate in free ends spaced from the upper surface. The claws have under surfaces on each claw that diverge downwardly in a direction away from the other claw toward the upper surface. The gap overlies at least most of the width of that upper surface. The free ends of the claws are spaced from that upper surface a distance which is a minor fraction of the width of the upper surface and have under surfaces which are inclined downwardly in a direction from the free ends toward the upper surface. There is a recess in the hammer in which the handle is disposed.

Abstract: A hammer having an improved head assembly. The hammer head assembly has a head portion, a shank portion, and a claw portion. The head portion has a front face having a triangular configuration. The head portion also has a horizontally oriented top wall and two side walls that converge downwardly toward their bottom ends where they meet. The center of the front face of the head portion lies on an axis that is perpendicular to the longitudinal axis of the handle and they intersect at the center of gravity of the hammer head assembly. The top end of the shank portion is flat so that the hammer can free stand on the surface. There is a rounded indentation between the shank portion and the claw portion so that it may be rested upon a block or cats paw for extra leverage. A T-shaped slot may be formed in the top end of the handle and it may have a related magnet for detachably capturing the head of a nail therein for hammering purposes.

Abstract: An improved, versatile, lever bar which may be used as a crowbar, prybar, sledge hammer, pickaxe, wedge, etc. The lever bar has a long handle with a thick base plate chamfered at one end and secured perpendicular to the axis of the handle at one end thereof. A thick foot plate has a sharp end from which diverge edges defining an acute angle for entering under or behind boards to be pried. A massive, flat, triangular or trapezoidal anvil plate is secured to the base plate and handle. The base plate and anvil plate can serve as hammer heads while the tool is used as sledge hammer. The base plate and foot plate can serve as splitting wedges and as heads of a pickaxe.

Abstract: A claw hammer having a protective cushion attached to the hammer head so that during normal usage it is in a resting position which will not interfere with the nail driving (or pounding) function of the hammer but at least a portion of the protective cushion is movable into a working position over the bell end of the hammer in order to prevent or minimize damage to the nail bearing surface when the claw end is used for nail pulling. The means facilitating movement of at least a portion of the protective cushion may be either a slide mechanism or a pivot point, such as a hinge, fold or bend. The protective cushion may be made of leather, rubber, synthetic rubber, plastic or other materials.

Abstract: A nail-removing hammer has at least one sidewardly opening claw located just behind the poll portion of the hammer head. The claw is formed from a transverse bore in the side of the head, and a pair of jaws at the top of the head which are situated over the bore. The jaws are preferably defined by V-shaped flanges extending over a portion of the bore. Similar sidewardly opening claws may optionally be mounted in the throat.

Abstract: A claw hammer head has a fulcrum member hinged by a hinge assembly to the head for swinging between retracted and extended positions. In the retracted position, the fulcrum member is retained in a recess in the head so that the hammer can be used for driving nails into a work surface in the normal manner. In the extended position, the fulcrum member is swung relative to the head to extend beyond the head so as to increase leverage for extracting nails from the surface. The fulcrum member is hinged to the head in such a manner that load incurred while extracting nails is transferred essentially directly to a bearing surface of the hammer head, and thus relieves load from the hinge assembly.

Abstract: A model construction tool for use with pins of the type used in model construction comprising a rigid body having opposite ends and a hammer surface at one of the ends adapted for pounding the pins into a surface. The body has a generally annular flange at the other of its ends with at least one slot in the flange for removing pins. The body is constructed of non-magnetic material and a magnet is carried by the body for picking up pins.

Abstract: A hammer has a nail-removing claw located at a top portion of the hammer head between the poll and the handle. The novel claw is a pair of opposing jaws defined by a rearwardly opening V-shaped slot which is accessible from the side and rear of the hammer head. A second novel nail-removing claw is located in the throat of the hammer head between the poll and the handle. This claw consists of a pair of opposing jaws defined by a downwardly opening V-shaped slot.

Abstract: A small hand tool such as a carpenter's hammer is disclosed as having a head which is pivotally connected crosswise to its handle. The head is provided with abutment faces which at different inclinations of the head to the handle are selectively aligned with the blunt end of a latch rod threadedly connected to the handle within a provided axially extending bore. Rotation of a larger-sized operating knob at the rearward end of the handle effectively advances and retracts the latch rod to releasably lock the hammer head to the handle in the selected position to which it is adjustable thereon.

Abstract: A claw hammer is provided with a wedge-shaped portion on the contact surface between the anvil portion and the clawed portion in order to enable the user thereof to remove nails from a surface with a minimum of effort and a reduced swing of the handle.

Abstract: A new invention of an easy pull clawed tool rest for removing nails, brads, tacks, spikes, etc., is disclosed wherein the size measures four inches in base length, 13/4 inches in width, and 11/2 inches in height at its thickest end, said vertical height rounding to meet the 1/8 inch height of the opposite base end in an arc determined by a connecting portion of a 6 inch radius circle. Indents of 3/4 inch width and 1/4 inch depth begin at the 11/2 inch vertical height midway between base and top surface and run parallel to the base toward the 1/8 inch height for a length of 11/4 inches, providing grip depressions for thumb and fingers of user. The rest shall be of molded 75 to 80 durometer neoprene rubber or comparable material which reduces possibility of surface marring to the maximum when the rest is used, while at the same time functioning well in the purpose for which it is intended.

Abstract: A hammer having a head with a forward extending nail driving portion, and elongated handle to permit manually gripping and wielding the hammer, and a bifurcated claw portion extending rearwardly from an upper portion of the hammer head for use in the drawing of nails or the like. The claw portion includes a support structure extending from a lower portion of the hammer head to a rearward portion of the claw, to provide support for the tines formed by the bifurcated claw portion. The body of the hammer head may take any usual form, although it is preferably split into upper and lower portions which taper together toward the front of the hammer to support the nail driving portion; and which extend rearwardly to carry the claw structure on the upper portion and the support structure on the lower portion.The handle may extend through the hammer head to support the upper and the lower portions comprising the hammer head, or may be received in a downwardly opening socket in the hammer head.

Abstract: An adjustable leverage pry tool having a lever including a handle portion and a pry portion connected to the handle portion and in the form of an arcuate plate provided with a claw. Mounted on the pry portion is a fulcrum member which is movable along the arcuate plate between the claw and the handle portion for varying the angle and amount of leverage exerted by the lever. The cross section of the fulcrum member is elliptical and has its longest axis disposed at an acute angle with respect to the arcuate plate in order to enhance the leverage of the tool.

Abstract: An improved raker claw hammer, composed of a handle, a hammerhead, and a claw, the plane of the claw being parallel to the axis of the handle, for extracting nails by inertia or by leverage. The claw, which is composed of two prongs in V-shaped configuration, has one of its prongs sharpened for cutting, chipping, or dragging wood. In the area between the prongs is a V-shaped groove for gripping nail heads for each extraction.

Abstract: A hand tool having a leverage handle from which a nail pulling foot portion extends laterally from one end thereof and has a bore formed therein from its extreme lateral end toward the handle for receiving a portion of a nail, the balance of which is embedded below the surface of a member from which it is to be extracted by movement of the handle in a direction to first bend such nail into a snubbing relation to the bore in which it is lodged, the foot portion of the tool having an arcuate contoured face rockable upon the surface from which the nail is to be extracted. The tool further having slits formed in that face thereof opposite the arcuate surface into communication with the bore formed in the foot portion for register and receipt of the head of a flat headed nail during the bending and pulling operation of the tool. This feature also provides a safety feature by preventing the nail from flipping out of the bore when the nail comes loose from the surface out of which it is pulled.