Abstract: In a method and a system for determining the feeding speed when bandsaw cutting a workpiece, the tooth pitch TP of the bandsaw blade is determined in a first unit depending on the shape and dimensions of the workpiece. In a second unit feeding depth per tooth is determined depending on properties of the workpiece material and the width of the bandsaw blade. The bandsaw blade velocity BS is determined in a third unit from the width W of the workpiece and the hardness of the workpiece material, whereafter the cutting time T is determined in a first calculating unit from the height H of the workpiece, the feeding depth per tooth, the tooth pitch TP and the blade velocity BS. In a second calculating unit the feeding speed MH for the bandsaw blade is then determined by the equation MH=H/T. A computer program, when executed on a computer, performs this determination of the feeding speed when cutting a workpiece with a bandsaw from supplied input data.

Abstract: A saw includes at least one handle and at least one blade, the handle having at least one fastening device having at least one first part in the form of a rotational body, which rotational body can be turned around a first turning axis. The blade is detachable from the handle and has at least one through cut-out extending from an edge of the blade. The first turning axis extends through the at least one cut-out.

Abstract: The present invention relates to a tool for pipe bending comprising at least two branches (1, 3), at least one link arm (8), at least one former (7), and at least one sliding jaw (9), said at least one former (7) and said at least one sliding jaw (9) being intended to be placed on either side of a pipe (12) to be bent, and said at least one former (7) being fitted to, or constituting a part of, a first branch (1) of said at least two branches (1, 3) at the same time as said at least one sliding jaw (9) being fitted to, or constituting a part of, a second branch (3) of said at least two branches (1, 3). At least one of said at least one former (7) has at least one pipe-positioning index (18, 19), one of which is intended to be placed as close as possible to a corresponding bending-measure index on the pipe (12) when the pipe (12) is placed in the tool in order to be bent. The present invention also relates to a former (7) for use as a part of a tool for pipe bending.

Abstract: In a method and a system for determining the feeding speed when bandsaw cutting a workpiece, the tooth pitch TP of the bandsaw blade is determined in a first unit depending on the shape and dimensions of the workpiece. In a second unit feeding depth per tooth is determined depending on properties of the workpiece material and the width of the bandsaw blade. The bandsaw blade velocity BS is determined in a third unit from the width W of the workpiece and the hardness of the workpiece material, whereafter the cutting time T is determined in a first calculating unit from the height H of the workpiece, the feeding depth per tooth, the tooth pitch TP and the blade velocity BS. In a second calculating unit the feeding speed MH for the bandsaw blade is then determined by the equation MH=H/T. A computer program, when executed on a computer, performs this determination of the feeding speed when cutting a workpiece with a bandsaw from supplied input data.

Abstract: The present invention relates to a snap-type locking device for releasable and principally external keeping together of two parts (1, 2) and comprising at least one grip pat (11, 11a, 18, 20, 21, 22), at least one movable arm (12, 12a, 12b) and at least one spring (14, 14a, 14b, 14c), said at least one movable arm (12, 12a, 12b) being turnably attached to said at least one grip part (11, 11a, 18, 20, 21, 22) as well as, directly or indirectly, to a first part (1)of said two parts (1, 2). Said at least one spring (14, 14a, 14b, 14c) abuts against said at least one grip part (11, 11a; 18, 20, 21, 22) in order to urge the same in a direction away from said two parts (1, 2).

Abstract: A bandsaw blade includes a blade beam carrying a plurality of cutting teeth separated by gullets. A clearance angle of the teeth is smaller than 35°, and the back of a leading tooth has a convex transition to a gullet. The radius of the gullet is larger than ½ of the depth of the gullet.

Abstract: Setting device for sawblades, where a saw tooth (10) to be set is bent by contact with a ridge (17) on one among two conical detting rollers (14, 15), while the sawable is squeezed between two cydrical pressure rollers (12, 13) with axes which are parallel to the setting rollers but controllably displaceable, and the rotation of the setting rollers is adapted to the velocity of the sawblade by measuring the passage of the saw teeth past a measuring device and comparing with the angular position of the setting rollers.

Abstract: Hardening fixture for simultaneous hardening of a multitude of sawblades, comprising a bottom plate against which the lower ends of the sawblades are supported, vertical pillars and side plates with lateral openings, where guiding strips and distance elements keep the sawblades parallel close to each other without compressive force, where the structural parts are made from graphite with a surface coating not containing carbon.

Abstract: The invention relates to a hand tool comprising a first leg (1) and a second leg (2) whereby a front part of the respective leg creates a tool part (3 and 4 respectively) and a rear part of the respective leg creates a gripping part (5 and 6 respectively). The gripping part (5) of at least one of the legs comprises an outer part in the form of a sleeve (10) which is fitted over an inner part (9) connected with the tool part (3). Further the hand tool comprises at least one spring part (12) with a first freely moveable end part (13) and a second end part firmly held at the mentioned sleeve (10). This spring part (12) is intended to again move the legs (1, 2) apart after they have been squeezed together in using the tool.

Abstract: The invention relates to a hand tool comprising a first leg (1) and a second leg (2) whereby a front part of the respective leg creates a tool part (3 and 4 respectively) and a rear part of the respective leg creates a gripping part (5 and 6 respectively). The gripping part (5) of at least one of the legs comprises an outer part in the form of a sleeve (10) which is fitted over an inner part (9) connected with the tool part (3). Further the hand tool comprises at least one spring part (12) with a first freely moveable end part (13) and a second end part firmly held at the mentioned sleeve (10). This spring part (12) is intended to again move the legs (1, 2) apart after they have been squeezed together in using the tool.

Abstract: A bandsaw blade includes a strip and teeth projecting therefrom, which teeth are arranged in recurring main groups. Each main group comprises recurring geometrical subgroups and recurring setting subgroups. Each geometrical subgroup comprises teeth of at least two different heights, high and low respectively, and comprises an even number of teeth. Each setting subgroup comprises teeth of at least five types, normal left set, medium left set, unset, medium right set and normal right set respectively, and comprises six teeth.

Abstract: A circular hole saw blade is provided with a removable edge protector. The edge protector is in the form of a cylindrical loop of stiff elastic polymer material inserted coaxially into the blade alongside an inner cylindrical surface thereof. The loop has an inner axial end situated inside of the blade and an outer axial end disposed axially outwardly of the cutting teeth of the blade.