Patent
Utility knives (US Patent 5005290)
The Stanley Works Limited · Granted Apr 9, 1991 · Filed Jan 8, 1990
Patent number: 5005290 Granted: 1991-04-09 Filed: 1990-01-08 Inventors: Richard Gilbert (Dronfield, GB3) Assignees: The Stanley Works Limited (Bracknell, GB2)
Abstract
A utility knife comprises a lower elongate part shell 1 and an upper such part shell 3 forwardly fitted with interengaging wedging surfaces whereby they clamp together on relative longitudinal movement. This movement is achieved by turning nut 2 on shank 8 to bear on wall 30. The loosening of the nut 2 to unclamp the part shells and thus permit blade 43 to be pushed forward with slider
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