Patent GB-190003809-A (GB)
Title: Improvements in Machines for Stitching or Stapling Books, Pamphlets, and the like.
Inventor: MACKAY ANGUS GEORGE
Filed: 1900-02-27
Granted: 1900-06-02
Abstract: 3809. Lake, H. H., [Mackay, A. G.]. Feb. 27. Stapling books, pamphlets, &c. The wire is fed from a reel upon which the wire is pressed to prevent tangling by a brake-band carried by a lever actuated by a spring. The spring can act on either side of the pivot of the lever, so as to hold the brake-band in or out of operation. The feedrollers are mounted on a shaft at R and on the crank r<5> of the shaft r<3>. The line joining the crank and shaft R is not quite at right-angles to the wire, so that the wire is straightened as well as fed. The feed-rolls are pressed together by rocking the shaft r<3> by an arm r<6>, spring rod r<10>, and swivelling pin r<11> on the hand lever r<8> pivoted at r<9>. The shaft at R is fixed to a ratchet-wheel S actuated by a pawl s<1> on the arm s. This arm is actuated by toggles s<3>, s<4> connected by a link s<6> to the crank f<2>, Figs. 10 and 16, on the main shaft D. To prevent wear and noise due to the pawl s<1>, it is lifted from the ratchet-wheel by the cam surface t<4> of the lever T frictionally connected to the ratchetwheel. The feed is varied by turning the plate P to which the toggle link s<4> is pivoted. The plate is fixed to a spindle p<7>, Figs. 6 and 16, with handle p<8>. The plate has a cam slot acting on a pin p<6> connected to the horizontally-sliding piece L, Fig. 6, carrying the fixed cutter l and movable cutter l<1>. By altering the position of the cutter when the feed is altered, the legs of the staple are kept of equal length. The cutters are inclined to the wire as shown, to give a better point. The movable cutter l<1> is fixed to a slide l<2> actuated by a bell-crank lever M, Figs. 6 and 16, rocked by the heel of the link f<1> pivoted to the crank f The wire passes through an eccentric channel in a piece o, Fig. 6, which can be turned so as to ensure the wire being delivered properly to the staple former and driver shown in Fig. 10. The staple blank is held on the anvil G by fingers on a spring-actuated slide H which is raised by a projection on the former E engaging with a lever pivoted at g<1>. The anvil G is formed on the lever g, also pivoted at g<1>. This lever is rocked by the cam projection g<3> on the driver F. The staple is bent over the anvil G by wings on the former E, and the staple is then liberated from the anvil, which rocks out of the way and allows the staple to be clamped between the driver F and staple support I. As the staple is driven into the work, the support I is moved downwards and backwards by the cam surface k<7> engaging with the roller k<6> on one of the two links k, k<1> by which the piece I is supported. The former E is actuated by the cam-groove e<1> and the driver F, Figs. 10 and 16, by the link f<1>. The table C, Fig. 21, is raised and lowered by toggles connected by a right- and left-handed screw, and the staples are clinched by dogs w, w<1> which have pins moving in slots w<10> and bear against fixed pins w<11>. The dogs are rocked and raised by a slide X with hooked ends x<1>.