| 摘要 |
A fastener driving machine featuring conventional means for propelling the fasteners, for example, staples, in combination with a novel guiding system comprising a pair of arms provided with longitudinal grooves along which the fasteners travel and adjustable anvil means mounted for predetermined movement in relation to the arms and including curvilinear surfaces against which the fasteners strike causing the ends thereof to bend backward in securing relation, the fastener driving machine designed particularly for use in the construction of ferro-cement marine hulls wherein groupings or wires forming the framework thereof must be fastened together at preselected points.
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