Abstract: Disclosed is a template for forming tapered sliding dovetail joints. The template is particularly useful for making tapered sliding dovetail joints using powered hand tools, such as a router. The template has a longitudinally extending groove which is narrower at one end than at the other. To form a sliding dovetail groove, a workpiece is placed underneath the template, and a dovetail cutter is passed along the sides of the groove. The template also has two longitudinally extending grooves which are tapered towards each other. To cut a sliding dovetail tongue, the end of a workpiece is placed below the template so the edges of the workpiece are exposed through the grooves, but the middle of the workpiece is covered by the template. A dovetail cutter is passed along the sides of each groove, creating a dovetail tongue. The template may also be secured to a dovetailing jig, to provide secure alignment and holding of the workpieces against the template.

Abstract: A method and a device for carrying out the method of guiding the blades (4) of a circular saw in operation, such as at the sawing of, for example, saw timber, timber blocks, battens or other workpieces on wood basis, where one or several blades (4) are located at an axle (6) and each blade is guided by at least one guide (9,11) acting on the blade. At least one of the guides (9,11) of each blade (4), and in such a case guides corresponding to each other for all blades (4), separate or together with said corresponding guide of remaining blades in the form of a guide package (9',11') during the sawing are floating substantially in the axial direction of the blades (4) and hereby continuously positioned laterally in response to movements and position of the workpiece (1) being sawn, substantially in the axial direction of the blades in connection to the guide or guide package and/or the lateral movements and lateral position of the blade(s) in connection to the guide (9,11) or guide package (9',11').

Abstract: A radial arm of a radial arm saw comprises a lightweight metal casting of inverted U cross-section and having opposing longitudinal grooves in the inner faces of the side walls of the inverted U. A metal strip of resilient arcuate cross-section is press fitted into each groove to form guides for supporting and guiding a power saw unit movable along the radial arm. The lighter weight of the radial arm is particularly advantageous for a portable radial arm saw, and the inserted metal strips form inexpensive durable guides.

Abstract: A blade guide for saw blades consists of a number of small cemented carbide plates which are moulded at intervals onto a base plate of steel or the like by means of a metal, such as brass or bronze, or with a plastic material, which is considerably softer than the carbide in the plates and presents a smooth surface of carbide plates in the moulding material to the surface of the saw blades.

Abstract: The present invention relates to an apparatus for the slicing of items or products such as croissants and/or sandwich buns to minimize risk of injury and to assure uniform slicing, even with variations in the dimensions of the product. The apparatus comprises a holder for the item to be sliced on a support stand having a fixed surface and a movable cover. A support member spaced between the fixed surface and movable cover supports the item in alignment with a knife or slicer guide so that a user can slice an item such as a roll or croissant uniformly without risk of injury.

Abstract: This disclosure relates to a chain saw guide bar including a main or body part and a front part. The two parts fit together in a tongue-and-groove joint having a V configuration, and the parts are secured together by fasteners such as rivets. A chain guide groove is formed in the periphery of the two parts, and the front part may include a rotatable sprocket for the chain.

Abstract: A drilling jig is disclosed which not only permits the drilling of multiple holes on a flat surface or on the edges of a workpiece, but accessories are also disclosed which permit the drilling jig to be converted into a divider, a compass, inside and outside calibers, and a cutting guide for use with either a knife or a saber saw blade. The drilling jig consists of one or more elements having fixed drill guide bushings located along their lengths fastened together end to end. An element having a pair of drill guide bushings which are adjustable along the length of this element is also joined to the elements having fixed drill bushings so as to enable the jig to set any spacing along the length of the work. Adjustable guides are affixed to the sides of the drilling jig to enable its accurate placement on the edge of a workpiece. A device is also disclosed for fastening the elements together to enable their use as a rigid unit, while at the same time enabling them to be readily disconnected and stored.

Abstract: A blade guide for saw blades consists of a number of small cemented carbide plates which are moulded at intervals onto a base plate of steel or the like by means of a metal, such as brass or bronze, which is considerably softer than the carbide in the plates.

Abstract: In a band-saw machine including a machine stand defining a substantially horizontal workpiece support region, first and second clamping jaws mounted on the stand, with the first clamping jaw being mounted to move horizontally toward the second jaw for clamping a workpiece between the jaws, a machine head mounted above the support region, and supported for vertical displacement relative to the machine stand, an endless saw band mounted in the machine head to present a cutting reach extending above and across the support region, and two saw band guides disposed to respectively opposite sides of the workpiece support region, each associated with a respective clamping jaw and each holding the saw band in position to cut a workpiece, the guide associated with the first clamping jaw is mounted on that jaw to be displaced vertically without tilting relative thereto, a connecting member is connected between the guide associated with the first jaw and the machine head for transmitting the cutting reaction forces impos

Abstract: A self steering blade guide for a band saw, including a support block which can be rigidly fixed to the frame structure adjacent the blade and which supports a steering block having a blade receiving slot with side surfaces adjacent the flat sides of the blade and engagable therewith upon the sideways deflection of the blade, and a mounting connection between the steering block and the support block for permitting pivotal movement of the steering block about an axis parallel to the direction of travel of the blade, the axis being adjacent to or forward of the cutting edge so that the blade will pivot about the axis with the steering block when deflected, and through action on the blade by the material being cut the blade will automatically be returned to its normal position parallel to the direction of feed of the material through the blade.

Abstract: A non-contacting damping method and means for reducing vibrations in, and noise radiation from vibrating mechanisms, particularly saws and other mechanical members or materials with acoustically radiating surfaces that may be required to move with a substantially frictionless relation to the damping means is disclosed.

Abstract: A clamping assembly for clamping a block of wearable material for guiding a band saw blade to maintain the blade in alignment at a working station. The block of wearable material is formed with a dovetail adjacent a rear face remote from the wearing face of the block, and the clamping assembly includes clamping elements having inclined surfaces mating with the inclined surfaces of the dovetail to provide clamping and gripping forces and inwardly directed drawing forces on the block. The clamping elements are separated in the clamping region by a gap permitting them to be drawn towards one another and thereby to exert a clamping force on the dovetail of the block of wearable material. The clamping elements are dimensioned so that one element behaves as a cantilever spaced from the other element, which thereby maintains a fixed relationship with a supporting datum surface.

Abstract: The blade guide invention relates to devices employed in bread slicing machines to guide band blades. Mounting to increase cutting accuracy and providing for increased life and reduced tendency to seize the band blades is achieved by a blade guide (11) with body, guide and attachment portions (16, 17, 18) formed in a unitary construction. The guide portion includes spaced apart prongs (19, 21, 22) with improved wear surfaces (24, 31a, 31b) forming a channel (36a) for the band blade.

Abstract: A hinged article, preferably in the form of a track (10) for slidably retaining a cutter slide (12) therein, includes first and second sections (18 and 20) joined together at a hinged region (22 and 24); said first and second sections having channel segments (28 and 30) communicating with each other to permit movement of an element, such as cutter slide (12), between them when the sections (18 and 20) are in a first orientation relative to each other; at least one stop (e.g. 34) formed in the article adjacent the hinged region for intercepting a channel segment (28) when the first and second sections (18 and 20) of the article (10) are in a second orientation relative to each other.

Abstract: The specification discloses a mill including a track having separable sections clamped to ground bearing cross members to which a log to be ripped is dogged. A carriage has deeply flanged rollers engaging opposite track members and supporting a post. A crossarm support is adjustable up and down the post and a horizontal crossarm is adjustable horizontally on the support by a rack and pinion drive. A saw bar of a chain saw is bolted to a quadrant which is quickly adjustable between a vertical position and a horizontal position of the saw bar. A handle on the carriage is adapted to be pushed by an operator to move the carriage along the track, and a bowden-wire control to the throttle of the chain saw is mounted on the handle.

Abstract: A clamping assembly for clamping a block of wearable material for guiding a band saw blade to maintain the blade in alignment at a working station. The block of wearable material is formed with a dovetail adjacent a rear face remote from the wearing face of the block, and the clamping assembly includes clamping elements having inclined surfaces mating with the inclined surfaces of the dovetail to provide clamping and gripping forces and inwardly directed drawing forces in the block. The clamping elements are separated in the clamping region by a gap permitting them to be drawn towards one another and thereby to exert a clamping force on the dovetail of the block of wearable material. The clamping elements are dimensioned so that one element behaves as a cantilever spaced from the other element, which thereby maintains a fixed relationship with a supporting datum surface. The clamping elements may be integral with one another or provided with contacting surfaces adjacent the rear face thereof.

Abstract: A machine for the cold sawing of workpieces, particularly those made of metal, in which a vertical feed of a circular vertical saw blade is guided vertically by gliding elements adhering laterally to the saw blade. The gliding elements are guided movably relative to the saw blade of a drive for the blade, parallel to the plane of the saw blade. The gliding elements may be located above the workpieces, and they may be fastened by carrier to vertical or inclined straight guides. These gliding elements, furthermore, may be fastened to guides with a curved guide track. The guides may be fastened to stands guiding the transmission housing, and the gliding elements contacting the front side of the saw blade, may be connected to each other by a carrier which, on its underside, has the form of a lower section of the saw blade and covers the lower soft blade section.

Abstract: A butcher's meat saw has a housing from which extends a flat guide plate having an edge along which is slidable a blade reciprocated by an eccentric-type drive mechanism within the housing. Either the edge of the guide or the edge of the blade is formed with a groove and the other edge fits in this groove. One of these edges is furthermore formed with laterally opened notches so as to facilitate cleaning of the saw.

Abstract: Improvements in skin closure means including means for uniting and holding separable closure members and skin portions attached thereto accurately together and to prevent separation thereof by forces which might otherwise cause the united members to separate. The subject construction also includes means for accurately guiding an instrument such as a scalpel while making an incision and for aligning and holding the separated edges of a skin wound or incision together during healing in such a way as to minimize or prevent the formation of scar tissue. The subject closure means are easy to apply quickly and accurately even under adverse conditions such as in first-aid treatment during emergencies, under disaster and wartime conditions, in emergency wards, in field, forest and wilderness situations and also under more controlled conditions such as operating rooms and doctors' offices particularly as the final step in completing a skin closure.

Abstract: A template device adapted to take a core of meat from a carefully controlled portion of a meat carcass including a template adapted to control the location and direction of the coring, and a coring tool adapted to be guided by the template to cut the core from the carcass.

Abstract: Guide apparatus for a rotary saw having a circular saw blade freely moveable longitudinally of an arbor which includes a pair of guide plates mounted in a frame on opposite sides of and parallel to the saw blade and adapted to be adjustably positioned longitudinally of the arbor. Each of the plates have a plurality of spiral grooves formed in its face. The grooves have open loading ends, relative to direction of rotation of the saw, opening out of edges of the guide plate so that rotation of the saw blade induces a flow of air into the grooves. The grooves are effectively closed at trailing ends so as to develop air cushions between the saw blade and the guide faces and thus stabilize the saw blade between the guide plates. Means is also provided for introducing a lubricating liquid into the open ends of the grooves.

Abstract: A method and means for cutting or ruling squares is disclosed. The device comprises first and second flat guide members which are adapted to be positioned on the film halftone or diffusion transfer print. The first flat guide member comprises an elongated base portion and an elongated leg portion extending from one end of the base portion at a right angle thereto. The base and leg portions have inner guide edges formed thereon. The second flat guide member comprises an elongated base portion and an elongated leg portion extending from one end of the base portion at a right angle thereto. The base and leg portions of the second guide member have outer guide edges complementary to the inner guide edges of the first guide member. The base and leg portions of the second guide member also have inner guide edges provided thereon. The two guide members are used together to either rule or cut four perfect 90.degree. rules or cuts on four sides of the film halftone or diffusion transfer print.

Abstract: A metal plate shears for cutting large sheets of metal includes a fixed blade, and a movable blade cooperable therewith. The movable blade is mounted on a plate having a plurality of circular apertures therein. Discs are mounted in these apertures, the discs being eccentrically supported, the axes of the eccentrics being in the same angular relation to and the same angular relation from, the centers of the discs. Arms are secured to the discs, and hydraulic means are provided for rotating the discs about their eccentric axes. Rotation of the discs lowers the plate bearing the movable cutting knife past the fixed knife, shearing off a sheet inserted between the blades.

Abstract: An integrally molded synthetic resin mitre box has an elongated base portion, rigid post members spaced along one side thereof and a rigid guide member on the opposite side thereof. The guide member and posts have aligned vertical channels therein opening at the top surface thereof and providing guide channels for a saw blade at varous angular orientations relative to the longitudinal axis of the mitre box. The post members and guide member are of generally hollow construction with inverted columnar portions providing the channels. The base portion is provided with apertures, and a depending lip is provided along one side for secure placement against a worktable or the like.