Pamphlet assembly and stapling machine

Claim 1

A PAMPHLET ASSEMBLY AND STAPLING MACHINE, COMPRISING: A TABLE-LIKE SUPPORT HAVING AN ELONGATED HORIZONTAL SHEET RECEIVING SURFACE; GUIDE MEANS ON ONE SHEET RECEIVING SURFACE INCLUDING A PAIR OF PARALLEL SPACED-APART RAILS FOR ENGAGING AND ALIGNING OPPOSITE SIDE EDGES OF A STACK OF SHEET MATERIAL DEPOSITED BETWEEN SAID RAILS; CONVEYER MEANS ON THE SHEET RECEIVING SURFACE INCLUDING A PAIR OF CHAINS EXTENDING LONGITUDINALLY OF SAID TABLE-LIKE SUPPORT IN SPACED-APART PARALLEL RELATION, UPSTANDING LONGITUDINALLY SPACED-APART PINS SECURED TO EACH OF SAID CHAINS IN ALIGNED RELATION TRANSVERSELY OF SAID SHEET SUPPORTING SURFACE FOR ENGAGING THE REARWARD EDGES OF STACKED SHEET MATERIAL AND ADVANCING THE LATTER LONGITUDINALLY OF SAID SHEET SUPPORTING SURFACE; PAMPHLET COVER FEEDING MEANS MOUNTED ON SAID TABLE-LIKE SUPPORT ABOVE SAID SHEET RECEIVING SURFACE FOR ADDING A PAMPHLET COVER TO EACH STACK OF SHEET MATERIAL, SAID COVER FEEDING MEANS INCLUDING UPRIGHT SUPPORTS MOUNTED ON OPPOSING SIDE SURFACES OF SAID TABLELIKE SUPPORT, A HOLLOW DRUM JOURNALED BY SAID UPRIGHT SUPPORTS FOR ROTATION ABOUT A HORIZONTAL AXIS, SAID DRUM HAVING SPACED APERTURES IN ITS WALLS, AIR PRESSURE REDUCING MEANS CONNECTED WITH THE INTERIOR OF SAID DRUM, A PAMPHLET COVER HOLDING RACK POSITIONED ADJACENT SAID DRUM SO THAT AN EDGE PORTION OF A PAMPHLET COVER WHEN PLACED ON SAID SAID DRUM OVERLIES A PORTION OF THE PERIPHERY OF SAID DRUM; PAMPHLET STAPLING MEANS MOUNTED ON SAID TABLE-LIKE SUPPORT; BELT CONVEYER MEANS FOR POSITIONING EACH STACK OF SHEET MATERIAL UNDER SAID STAPLING MEANS; AND CONTROL MEANS ACTUATED BY SAID POSITIONED STACK SHEET MATERIAL FOR OPERATING SAID STAPLING MEANS.