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The bottom part of the case D, as shown in Figs. The bottom of the case D rests I upon the face of the anvil-plate E. The plunger F is ofa length that, in connection with its spring G, on bein g pressed upon the bottom of its foot 8, will clear or pass down a little below the bottom of the case. up in the chamber H, as shown in the drawings, and to bring it back to that position so soon as pressure is removed from its cap.
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The office of the spring G is to' hold the plunger. The first coil of the upper end of the spring G enters an annular groove in the under surface of the cap F, for its better security. The cap F is screwed onto the plunger, whichlocks both it and the spring. The spiral spring G is placed over the upper en d of the plunger, and its lower portion, surrounding the same, passed down into section 5 of the chamber H. The cap F being removed, the capping end of the plunger is run up through the chamber H, its foot occupying the upper portion of section 7 and the feathers g g in the grooves d d. The upper end of the plunger is provided with a cap, F, secured thereto by the screwconnection f. The plunger F, which is intended to be moved up and down in the chamber H, consists of a cylindrical metal rod, having at its base an enlargement or foot, 8, which latteris provided on opposite sides with the feathers g g. Lower section, 7, being furnished with the staple-grooves d (I, cut vertically in its opposite sides. B27F7/19- Stapling machines with provision for bending the ends of the staples on to the work.B27F7/00- Nailing or stapling Nailed or stapled work.B27F- DOVETAILED WORK TENONS SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACHINES.B27- WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACHINES IN GENERAL.238000005755 formation reaction Methods 0.000 description 1.238000006073 displacement reaction Methods 0.000 description 1.230000015572 biosynthetic process Effects 0.000 description 1.229910000831 Steel Inorganic materials 0.000 description 2.238000006011 modification reaction Methods 0.000 description 3.Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Publication date Application granted granted Critical Publication of US212316A publication Critical patent/US212316A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links
#Stapled papers pdf#
US212316A - Improvement in devices for inserting metallic staples in papers - Google Patents US212316A - Improvement in devices for inserting metallic staples in papers - Google Patents Improvement in devices for inserting metallic staples in papers Download PDF Info Publication number US212316A US212316A US212316DA US212316A US 212316 A US212316 A US 212316A US 212316D A US212316D A US 212316DA US 212316 A US212316 A US 212316A Authority US United States Prior art keywords staple anvil plunger case face Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.