Patent GB-191305954-A (GB)
Title: Improvements in or relating to Box-making Machines.
IPC: B27M3/36
Filed: 1913-03-10
Granted: 1914-03-05
Abstract: 5954. Healy Box Co., [Healy, W. P.]. March 10. Stapling and discontinuous wire-stitching. - The work-feeding mechanism in a box-blank making machine wherein binding wires and sheets are stapled to cleats comprises a powerdriven ratchet-gear feed for the work-carrier and manually - operated means to adjust the degree of movement imparted to the feed while the machine is in operation. It may also be provided with independent manually-controlled means for advancing the carrier operable while the machine is working; with means operating automatically at required times to increase the normal feed step and with means to interrupt at will the action of the staple-forming mechanism while the other parts continue to act. An improved conveyer chain is also described. A pawl a<13> actuates the carrier a<9> through a ratchet wheel a<11> to furnish a step-by-step feed. A slotted rocking arm a<15> carries the pawl a<13> and is actuated from the main driving shaft a<23> by an eccentric rod a<17>. To adjust the feed during the operation of the machine and so vary the spacing of the staples, a handle a<296> is provided which actuates a slotted segment a<295>, a lever a<291> and a link a<290> to shift the pin a<29> by which the eccentric rod a<27> is coupled to the lever a<15> so changing the stroke of the pawl a<13>. To advance the work independently of this automatic feed, a hand-lever a<37> may act upon a pawl a<31> to -turn the ratchet-wheel a". The following device is used to increase the feeding step automatically at required intervals to prevent the insertion of staples at the joints between sheets. A rod a<41> is oscillated beneath the sheets by an eccentric on the main shaft. This rod carries a detector pawl a<39> which projects into the path of the spacing-blocks a<203> or into engaging relation with the spaces between the sheets or with other devices associated with the feeding-carriage. The pawl in its backward movement snaps behind a spacing-block &c., and in the forward stroke accelerates the feed or prolongs it beyond the normal feeding step of the automatic ratchet drive. The feed of the wire to the stapling-devices may be interrupted at will to prevent the formation of staples by a lever a<223> which operates to disengage a pawl a<121> from a ratchet a<119> which actuates the staplewire feeding-shaft a<107>. This lever a223 may be connected with the detector device to prevent the feed of staple wire when it is in operation. The reels a<63> of binding-wire and the reels a<77> of staple wire are carried above the machine by a frame a<69>, and blocks a<72> rest on the wires to control them as they are drawn off the reels. The feeding-chains may have links S<14> which are provided with ribs S<3>, S<13> to which the spacing-blocks are clamped, as shown in Figs. 7 and 8, to facilitate the operation of the detector device. One of the chains may be adjustable transversely, and the end frame which carries the idlers permits of their adjustment to accommodate varying lengths of chain. Specification 2539/14 is referred to.