Abstract: A blade adapter for a hacksaw is connected to the spine of the hacksaw and includes three connection portions. The hacksaw blade is connected between the engaging portion connected to the handle of the hacksaw and one of the three connection portions of the blade adapter to set the hacksaw blade at two different angular positions relative to the spine. The hacksaw blade can be set to be parallel to the spine or at an angle relative to the spine. A jabsaw blade is able to be connected to the front end of the hacksaw.

Abstract: A modular saw arrangement includes a main saw frame structure and a detachable handle structure. A second end portion of the detachable handle structure includes a first blade connector and a second blade connector. A blade tensioner arrangement of the main saw frame structure and the first blade connector are configured to be connected with opposite ends of a blade when a first end portion of the detachable handle structure is connected with an upper frame portion of the main saw frame structure so as to form a hacksaw configuration. The second blade connector that enables attachment of the blade in a grip configuration to enable the detachable handle structure to be configured as a stand-alone detachable handle saw when the first end portion is disconnected with the upper frame portion.

Abstract: A collapsible saw including a saw blade with teeth and a saw frame. The frame is made of four parts; a handle, a front piece, a support body and a lever piece. The four frame units fold flat and enclose both sides of the blade and fold out to form a generally U shaped saw frame, with the saw blade stretched between the two ends of the U shaped frame. The frame parts are connected to each other, and the saw has a sawing and a transport mode.

Abstract: A collapsible saw (10) comprising a blade (20) and a frame construction (30) formed of parts (31, 32, 33), whereto the blade (20) is attachable and which frame construction (30) can be transformed to a smaller form for e.g. transportation purposes and to at least partly cover the blade (20) when the saw (10) is not used. The parts (31, 32, 33, 34) of the frame construction (30) of the saw (10) are attached to each other and the blade (20) by means of fixing members (21, 22, 23, 24, 35), at least one of which is a fulcrum pin (21, 22, 23, 24), a bolt or corresponding allowing a turning motion between the parts, and/or that the saw (10) is collapsible and can again be turned into the sawing condition without detaching the fixing members.

Abstract: A handsaw for holding a saw blade for cutting is disclosed to include a handle having an cantilever bar, an extension bar pivoted to the cantilever bar and turnable relative to the handle between a received position and an extended position, a blade-retaining arm pivoted to one end of the extension bar remote from the handle and turnable about the axis of the extension bar, and two blade retaining members respectively provided at the handle and the blade-retaining arm for the mounting of a saw blade when the extension bar is turned to the extended position.

Abstract: A hacksaw having a frame that includes a back handle and an elongated beam that has a series of ridges on at least one or more surfaces of the elongated beam that form a file for reducing and smoothing surfaces of an article. The elongated beam has a first distal end coupled with a first back handle section. A hacksaw blade is coupled with the back handle and a fore piece coupled to a second distal end of the elongated beam.

Abstract: A blade quick removal device includes an arcuate frame integrated with a front handle and a rear handle, a first hook bar under the front handle, an oscillatory second hook bar nearby the rear handle for adjustably retaining the saw blade thereon and a locking member pivoted to the lower end of the second hook bar for fastening the hook bar to a reduced bottom of the rear handle and having an axial rod and a pair of latches respectively held by a hook and a pair of retaining projections on the bottom of the rear handle.

Abstract: A saw and/or saw frame including: an elongate substantially rigid back member and a swing arm pivotally connected to the back member so as to be rotatable between an extended position and a storage position; a handle with a first blade mount; the swing arm includes a second blade mount; the back includes a third blade mount disposed proximate to the swing arm; each of the first, second, and third blade mounts being constructed to engage one end of a removably mounted saw blade, with the first, second, and third blade mounts disposed to allow quick changes in blade configuration. The back member also has an elongate blade storage cavity accessible from above adapted to store at least one of the removably mounted saw blades and an auxiliary blade mounting mechanism configured to operatively mount an auxiliary blade extending forward from the frame.

Abstract: A two-position, quick-change hacksaw consists of a back member, handle structure adjacent a rearward end portion of the back member, and a swing arm adjacent the forward end. The free end of the swing arm and the forward end portion of the back member have coplanar blade-engaging elements thereon which serve to engage the forward end of the blade and which are commonly disposed on an arc that circumscribes a third coplanar blade-engaging element disposed on a coupling block of a tensioning mechanism for mounting the rearward end of the blade. Two coplanar sets of transversely paired engagement elements enable mounting of the blade both in a plane parallel to a medial plane of the frame and also in a plane disposed at a substantial angle thereto. In one configuration, with the swing arm in its inoperative position, the saw is adapted for cutting within a relatively confined space; with the swing arm in its operative position the saw is configured for cutting within a relatively unconfined space.

Abstract: A folding hacksaw having the back of the saw and the saw handle pivotally joined together and pivotally connected to a four-bar linkage comprising the blade, side frames and a back frame. The back frame is enclosed within the back of the saw. Movement of the handle relative to the back of the saw causes the saw blade to extend from the back or retract into the back in the manner of a folding knife. The movement of the handle places the handle in the proper cutting position when the blade is extended. A top latch maintains the handle in line with the back in the retracted position. A blade latch maintains the saw blade and the handle rigidly in the blade extended position.

Abstract: A hand saw is provided with a support having a front lever, which is pivotable about one of the opposite ends of the support between a rest position, in which it extends coplanar with the support, to an operative position, and a handle mounted on the other end of the support and rotatable thereabout from and in a respective rest position, in which the handle extends coplanar to the support, so as to the hand saw has substantially a linear configuration when the front lever and the handle are displaced in their rest positions.

Abstract: A two-position, quick-change hacksaw consists of a back member, handle structure adjacent a rearward end portion of the back member, and a swing arm adjacent the forward end. The free end of the swing arm and the forward end portion of the back member have coplanar blade-engaging elements thereon which serve to engage the forward end of the blade and which are commonly disposed on an arc that circumscribes a third coplanar blade-engaging element disposed on a coupling block of a tensioning mechanism for mounting the rearward end of the blade. Two coplanar sets of transversely paired engagement elements enable mounting of the blade both in a plane parallel to a medial plane of the frame and also in a plane disposed at a substantial angle thereto. In one configuration, with the swing arm in its inoperative position, the saw is adapted for cutting within a relatively confined space; with the swing arm in its operative position the saw is configured for cutting within a relatively unconfined space.

Abstract: The present invention is a lightweight collapsible hand saw for use when camping, hiking or otherwise. The saw breaks down and can be consolidated into a single tubular shape, with all of the components fitting inside the tube. In the functional configuration, a triangular saw may be constructed out of two tubular members having different diameters, a saw blade and a tightening element. Alternatively, both a triangular saw and a buck saw may be constructed out of three tubular members having different diameters, a saw blade and a tightening element. The tubular members form the frame of the saw and contain slots for inserting the saw blade. The tightening element is provided to give the saw the necessary rigidity and impart the necessary tension on the blade. In addition, the apparatus can be used to form a campfire cooking utensil with a number of accessorising elements.

Abstract: A hacksaw including a frame, a handle, an end piece, and a blade. The frame has an arcuate support rod which is provided at one end thereof with a protrusion and a plurality of recesses, and at the other end thereof with a protrusion and a plurality of recesses. The handle has a top cross rod which is provided with a receiving slot and a plurality of projections and is fastened at one end thereof to the arcuate support rod such that the receiving slot of the top cross rod receives the protrusion of the arcuate support rod, and that the projections of the handle are received in the recesses of the arcuate support rod. The handle is provided with a fastening member opposite in location to the top cross rod for fastening one end of the blade. The end piece is fastened to other end of the arcuate support rod and is provided with a slot for receiving the protrusion of the arcuate support rod, and a plurality of projections which are received in the recesses of the arcuate support rod.

Abstract: A collapsible saw has a mechanism for releasably tensioning and locking a saw blade into position while also conferring lateral support for the blade, namely a cam lock mechanism. Additionally, a long channel member, a short member, and a saw blade are each pivotably connected in the saw assembly. The long and short member pivot connection is releasable in a manner that allows the long and short member to nest one within the other along with the saw blade. A collapsible saw according to the present invention is highly compact and entirely interconnected such that loss of saw parts is not a concern. Another feature of the saw is that its interconnections and design yield a configuration that can be quickly expanded into an operative configuration or place in a collapsed configuration.

Abstract: A hacksaw includes a beam having two ends receivable in a tube and a handle. The tube and the handle each has an orifice and an aperture formed in one end for engaging with the ends of the beam and for maintaining the beam in a vertical position relative to the tube and the handle. A saw blade includes two ends secured to the other ends of the tube and the handle so as to form the hacksaw. The two ends of the beam are received in the tube and the handle so as to form a compact folded configuration when the saw blade is disengaged from the tube and said handle.

Abstract: A bow saw includes a saw blade seat, a handle and at least one saw blade. The handle is pivotally connected with one end of the saw blade seat. The saw blade seat axially extends into one end of the handle by a certain length. The saw blade pivotally connected with the other end of the saw blade seat. And, each saw blade can be rotated out through an opening of the saw blade seat to be engaged with the other end of the handle so as to form the bow saw in a working state. Therefore, the folding or unfolding operations can be quickly and safely performed and the bow saw can be held with a comfortable feeling.

Abstract: A collapsible handsaw which can be erected and collapsed without tools includes, in a first embodiment, a saw blade, a foldable frame, and a flexible binder. In this embodiment the frame includes two frame portions wherein each is connected by a pin to an opposite end of the saw blade and the single flexible binder is used to secure the free ends of the frame portions relative to one another when the handsaw is erected and ready for use and to secure the components of the handsaw in a bundle when the frame is collapsed. A second embodiment of the frame includes a pair of flexible binders and a third frame portion which, along with the first and second frame portions and the saw blade, forms a quadrilateral when the handsaw is erected and ready for use. The flexible binders can take various forms including elongated straps and flexible loops of fixed lengths. Free ends of elongated flexible binders are secured in different ways including by hook and loop fasteners and wedge configurations.

Abstract: A collapsible multipurpose hand saw is useful for camping, hunting, backpacking, tree pruning, wood cutting and like outdoor uses. The saw comprises two handles, a crosspiece, a saw blade, a tensioning strap and a tensioning rod. The hand saw is easily assembled and disassembled for storage. The saw blade can be mounted in a vertical or horizontal cutting position. The assembled hand saw can be combined with the case to form an emergency snow shovel. The hand saw has no small parts which are easily lost. The saw tensioning strap can be used to carry firewood bundles and can be used as an emergency sling or tourniquet. The handles and crosspiece can be used as emergency splints.

Abstract: A foldable bucksaw includes an elongated hollow box frame, which is also a blade storage sheath, with left and right handles connected by over center hinges to the ends of the box frame for movement between storage position and operative position. A screw mechanism on one handle is connected to the sawblade to tighten and loosen it. The screw mechanism includes an adjusting screw mounted on the handle and a tensioner nut for connection to the blade. The tensioner nut includes a central threaded aperture, a blade mount portion below it to position the sawblade in line with the adjusting screw, and an upper portion for extension into said saw handle to prevent the tensioner nut from rotating when the adjusting screw is rotated and while the blade is in use.

Abstract: A collapsible hand saw has a head portion which has a first receptacle to detachably connect with one end of a frame portion, and a handle portion to fixedly connect with the other end of the frame portion, so as to form a bow shape had saw framework to detachably connect a blade. The head portion has an integrally formed hammer member and a V-shaped notch to substantially drive and pull a nail. In addition, a plurality of spare blades can be mounted with the frame portion between the head portion and the handle portion.

Abstract: A collapsible bucksaw has an elongate straight sawblade and a collapsible H-shape frame with a central compression frame, a pair of end frames pivotally mounted to ends of the blade, a looped cord for a tightener and a rod to tighten the cord, the coil is slipped over cathces on outer ends of the end frames and is twisted and wound up to become shorter and thereby tighten the blade taunt, when the blade is taunt the tightener tool is slipped into a stop notch in the frame and is locked in place.

Abstract: A multi-purpose saw is provided which can be selectively positionable in one of an assembled working mode and a storage mode. The saw comprises a hollow handle, a hollow back bar, a saw blade, a blade stop assembly and a hook retainer assembly for interconnecting the handle and the back bar of the saw in one of the assembled working mode and the storage mode. The hollow handle, is provided with longitudinally aligned first and second blade slots, and a plurality of apertures disposed near the opposite end thereof, a pair of said apertures being spatially disposed in axial alignment on opposing sides of the handle and in substantial longitudinal alignment with the first and second blade slots. The back bar, also an elongated tubular member and having an outside diameter less than the inside diameter of the handle, is provided with a concave groove on one end thereof for mating abuttment with a portion of the handle when the saw is in the assembled working mode.

Abstract: A collapsible saw comprising an elongated hollow frame member, a handle pivotally connected to the frame member by an interconnecting member to form an angle with a saw blade connected between the free end portions of the angle, and a lever pivotally attached to the free end portion of the handle including a device for engagement with the saw blade and arranged to hold the saw blade by means of toggle action. When the saw is in the position for use, the handle and the interconnecting member abut the frame member at a distance from the point of attachment for the interconnecting member. The saw thus combines a rigid structure with rapid engagement of the saw blade.