Saw guide
AssigneeW S Norman Engineering Limited
InventorHoward George Osbourne
Life of this patent
Estimating the term…
Abstract
A saw guide for guiding the blade of a saw during cutting of a workpiece comprises a housing having a basal surface and a guide surface adapted to be positioned on a workpiece to be cut, such that with the basal surface engaging a surface of the workpiece, the guide surface extends across the surface to be cut at a forward position of the housing, such that a cutting member in face to face contact with the guide surface may be guided during cutting of the workpiece, and measuring means for measuring a position of the guide surface with respect to the workpiece such that, in use, the position of the guide surface may be monitored by reference to said measuring means, during a cutting operation of the workpiece. The saw guide enables a cut to be made with continual reference to the measuring means.
Claims25
A saw guide for guiding the travel of a saw blade when cutting a workpiece, the saw guide comprising:
- a housing having a basal surface, and a guide surface provided with magnetic means for urging the saw blade into guiding alignment with the guide surface, the guide surface further comprising at least one projection adapted to space the saw blade from the guide surface so as to prevent direct scraping contact by teeth of the saw blade therewith during use, the at least one projection and the guide surface further being sized and shaped such that a scribing mark made on the workpiece with a pencil or the like when braced against the guide surface with the basal surface of the saw guide located on the workpiece corresponds to a line of cut that will be made by the saw blade when the saw blade is in guiding alignment with the guide surface, and;
- a plurality of retractable guide members, at least one on each side of the housing, arranged so as to be moveable between a first, retracted position in which they do not project beyond the basal surface, and a second, extended position in which they do project beyond the basal surface.
Dependencies are inferred from the claim text.